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Organismal Biology Section Two Exam
Student: ___________________________________________________________________________
1.
In Griffith's experiment demonstrating that bacteria can transfer genetic information, the reason that the type "S" strain could
infect mice and cause pneumonia was because:
A.
B.
C.
D.
E.
2.
Hershey and Chase showed that the virus T4:
A.
B.
C.
D.
E.
3.
Hydrogen bonds
Covalent bonds
Ionic bonds
All the above are correct
None of the above are correct
The genome of an organism is all of its:
A.
B.
C.
D.
E.
7.
Adenine, thymine, cytosine, uracil
Adenine, thymine, cytosine, guanine
Uracil, adenine, cytosine, guanine
Uracil, cytosine, guanine, thymine
None of the above are correct
DNA's base pairs are joined by:
A.
B.
C.
D.
E.
6.
Thymine
Uracil
Guanine
Cytosine
Threonine
The four nitrogen bases that are found in the different nucleotides of DNA are:
A.
B.
C.
D.
E.
5.
Injects protein into a bacterium
Injects polysaccharide into a bacterium
Injects protein and DNA into a bacterium
Injects RNA into a bacterium
Injects DNA into a bacterium
Chargaff showed that DNA contains equal amounts of adenine and:
A.
B.
C.
D.
E.
4.
They had flagella as a means of movement
They reproduced much faster than type "R" bacteria
They produced a polysaccharide capsule (coat)
All of the above are correct
None of the above are correct
Proteins
Genetic material
RNA
Characteristics
All of the above are correct
In eukaryotic cells DNA is found in the:
A.
B.
C.
D.
E.
Nucleus
Mitochondria
Chloroplasts
All of the above are correct
None of the above are correct
1
8.
A sequence of DNA nucleotides coding for a specific protein or RNA molecule is a:
A.
B.
C.
D.
E.
9.
The process by which DNA reproduces itself is:
A.
B.
C.
D.
E.
10.
Eliminate the ability of a protein to function
Not alter the functional ability of a protein
Improve the function of a protein
All of the above are correct
None of the above are correct
Requirements for polymerase chain reaction tests include:
A.
B.
C.
D.
E.
14.
Primase
DNA polymerase
ATP synthase
Ligase
Helicase
A mutation may:
A.
B.
C.
D.
E.
13.
Conservative
A one-step process
Not carried out by enzymes
Semi-conservative
Not carried out in prokaryotic cells
The enzyme that adds nucleotides to form new strands of DNA is:
A.
B.
C.
D.
E.
12.
Protein synthesis
Aerobic respiration
Substrate-phosphorylation
Replication
Photosynthesis
DNA replication is:
A.
B.
C.
D.
E.
11.
Gene
Genome
Chromosome
All of the above are correct
None of the above are correct
A target DNA sequence to be replicated
A heat tolerant DNA polymerase
A supply of the four different DNA nucleotides
Two types of short, laboratory-made primers
All of the above are correct
Polymerase chain reaction may be used to:
A.
B.
C.
D.
E.
Identify missing persons
Establish genetic relationships
Identify remains
Identify disease-causing genes
All of the above are correct
2
15.
If one strand of a DNA molecule has the base sequence of ATGTGCC the complementary strand will read:
A.
B.
C.
D.
E.
16.
Apoptosis is also called:
A.
B.
C.
D.
E.
17.
A stretch of DNA
An RNA molecule
A ribosome and RNA
Histones
A stretch of DNA and histones
One of two identical attached copies of a replicated chromosome defines the term:
A.
B.
C.
D.
E.
21.
Nucleus
Ribosome
Chromosome
Golgi body
None of the above are correct
A nucleosome consists of:
A.
B.
C.
D.
E.
20.
Genome
Cytoplasmic contents
Cell membrane structure
Array of enzymes
All of the above are correct
A discreet package of DNA and associated proteins in eukaryotes is a:
A.
B.
C.
D.
E.
19.
Replication
Mitosis
The cell cycle
Programmed cell death
Programmed cellular reproduction
Before a cell divides, it must first duplicate its entire ______________:
A.
B.
C.
D.
E.
18.
ATGTGCC
UACACGG
CGTGTAA
TACACGG
None of the above are correct
Centromere
Chromatin
Chromosome
Chromatid
Nucleosome
A part of a chromosome that attaches sister chromatids to each other defines the term:
A.
B.
C.
D.
E.
Centromere
Chromatin
Nucleosome
Histone
None of the above are correct
3
22.
A cell with two full sets of chromosomes would be termed a _______________ cell.
A.
B.
C.
D.
E.
23.
A cell with one set of chromosomes would be termed a ________________ cell.
A.
B.
C.
D.
E.
24.
Gamete
Haploid cell
Diploid cell
Duplicated chromosome
None of the above are correct
An example of a haploid cell is:
A.
B.
C.
D.
E.
28.
Recombination
Replication
Mitosis
Fertilization
Germination
If a sperm cell combines with an egg cell the result is a:
A.
B.
C.
D.
E.
27.
Are the sex chromosomes
Are the "X" and "Y" chromosomes
Contain different genes
Determine sex (gender) of humans
All of the above are correct
The process by which a sperm cell combines with an egg cell is:
A.
B.
C.
D.
E.
26.
Haploid
Diploid
Sister
Somatic
None of the above are correct
The pair of unmatched chromosomes in humans:
A.
B.
C.
D.
E.
25.
Haploid
Diploid
Sister
Somatic
Germ
A sperm cell
A gamete
An egg cell
All of the above are correct
None of the above are correct
In humans, specialized cells that produce gametes are:
A.
B.
C.
D.
E.
Somatic cells
Sperm cells
Egg cells
Germ cells
None of the above are correct
4
29.
In humans, cells that do not produce gametes are collectively called:
A.
B.
C.
D.
E.
30.
The splitting of a cell into two daughter cells in the cell cycle is:
A.
B.
C.
D.
E.
31.
Interphase - prophase - telophase - metaphase - anaphase
Interphase - metaphase - anaphase - prophase - telophase
Prophase - metaphase - anaphase - telophase
Anaphase - prophase - metaphase - telophase
Prophase - anaphase - telophase - metaphase
The portion of the cytoskeleton that enables the chromosomes to be separated equally into two sets is the:
A.
B.
C.
D.
E.
35.
Mitosis
Interphase
Cytokinesis
Prophase
Telophase
The correct sequence for the phases of mitosis is:
A.
B.
C.
D.
E.
34.
Mitosis
Interphase
Synthesis
Cytokinesis
Replication
The replication of DNA during the cell cycle occurs during:
A.
B.
C.
D.
E.
33.
Mitosis
Interphase
Metaphase
Anaphase
Cytokinesis
The division of the nucleus during the cell cycle is:
A.
B.
C.
D.
E.
32.
Somatic cells
Sperm cells
Egg cells
Germ cells
None of the above are correct
Golgi body
Centromere
Centrosome
Kinetochore
Mitotic spindle
The phase of mitosis in which the centromeres split and sister chromatids are pulled to opposite poles of the cell is:
A.
B.
C.
D.
E.
Prophase
Prometaphase
Metaphase
Anaphase
Telophase
5
36.
The phase of mitosis in which the chromosomes are aligned along the equator of the cell is:
A.
B.
C.
D.
E.
37.
The phase of mitosis in which the chromosomes condense and centrosomes move to opposite poles of the cell is:
A.
B.
C.
D.
E.
38.
Sexual reproduction requires less overall energy expenditure than asexual reproduction
Sexual reproduction requires only one individual
Sexual reproduction produces genetically identical individuals
Sexual reproduction produces genetically different individuals
None of the above are correct
If human gametes were diploid:
A.
B.
C.
D.
E.
42.
Parthenogenesis
Conjugation
Apomixis
Mitosis
Replication
Sexual reproduction is important to the survival of a species in a changing environment because:
A.
B.
C.
D.
E.
41.
Sperm cells
Egg cells
Gametes
Haploid cells
All of the above are correct
The process by which a bacterium uses a sex pilus to transfer genetic information to another bacterium is:
A.
B.
C.
D.
E.
40.
Prophase
Prometaphase
Metaphase
Anaphase
Telophase
Meiosis is a process that produces:
A.
B.
C.
D.
E.
39.
Prophase
Prometaphase
Metaphase
Anaphase
Telophase
The products of fertilization would have the same number of chromosomes as their parents
The products of fertilization would have more chromosomes than their parents
The products of fertilization would have fewer chromosomes than their parents
Fertilization could not occur
None of the above are correct
A diploid germ cell reduces its chromosome number by half to generate four haploid nuclei in:
A.
B.
C.
D.
E.
Fertilization
Mitosis
Meiosis
Replication
Parthenogenesis
6
43.
A zygote is:
A.
B.
C.
D.
E.
44.
Human cell's have:
A.
B.
C.
D.
E.
45.
"XX"
"XYY"
"XY"
"YY"
None of the above are correct
Chromosomes that look alike and carry the same sequence of genes for the same traits are:
A.
B.
C.
D.
E.
49.
"XX"
"XO"
"XY"
"YY"
"XXX"
The chromosomal designation for a human female is:
A.
B.
C.
D.
E.
48.
Not found in pairs
Autosomes
The "X" and "Y" chromosomes
Called sex chromosomes
None of the above are correct
The chromosomal designation for a human male is:
A.
B.
C.
D.
E.
47.
22 pairs of chromosomes
23 pairs of chromosomes
44 chromosomes
2 pairs of sex chromosomes
One pair of autosomes
The human chromosomes that do not determine whether an individual is male or female are:
A.
B.
C.
D.
E.
46.
A haploid cell
A gamete
The first diploid cell of a new organism
A product of meiosis
All the above are correct
The "X" and "Y" chromosome
All the autosomes
Found in females only
Found in males only
Homologous chromosomes
In meiosis, DNA replicates during:
A.
B.
C.
D.
E.
Prophase one
Prophase two
Interphase one
Interphase two
Metaphase two
7
50.
In meiosis, homologous chromosomes separate during:
A.
B.
C.
D.
E.
51.
In meiosis, paired homologs align down the center of the cell during:
A.
B.
C.
D.
E.
52.
Four haploid daughter cells
Two haploid daughter cells
Four diploid daughter cells
Two diploid daughter cells
One daughter cell identical to the parent cell that underwent meiosis
Sexual reproduction and meiosis generates genetic variety by:
A.
B.
C.
D.
E.
56.
Metaphase one
Metaphase two
Anaphase one
Anaphase two
Telophase one
In meiosis two, cytokinesis results in the production of:
A.
B.
C.
D.
E.
55.
Prophase one
Prophase two
Interphase two
Metaphase one
Metaphase two
In meiosis, the separated sister chromatids move to opposite poles of the cell during:
A.
B.
C.
D.
E.
54.
Prophase one
Prophase two
Metaphase one
Metaphase two
Anaphase two
In meiosis, chromosomes containing sister chromatids (not homologous chromosomes) align along the center of the cell
during:
A.
B.
C.
D.
E.
53.
Prophase one
Prophase two
Metaphase one
Anaphase one
Anaphase two
Random fertilization
Independent assortment
Crossing over
All of the above are correct
None of the above are correct
Alternate forms of the same gene:
A.
B.
C.
D.
E.
Do not exist
Are homologs
Are alleles
Are sister chromatids
Do not occur in the same individual
8
57.
A healthy young couple are both carriers of cystic fibrosis, a simple recessive trait, the chance that each of their future
children will inherit this serious illness is:
A.
B.
C.
D.
E.
58.
An allele that exerts its effects whenever it is present is:
A.
B.
C.
D.
E.
59.
Homologous
Heterozygous
Homozygous
Dominant
Recessive
If the two alleles for a particular gene are different the gene pair is:
A.
B.
C.
D.
E.
63.
Were always short
Were always tall
Were always a mix of short and tall
Were sometimes tall, but sometimes a mix of tall and short
Did not grow and reproduce
If the two alleles for a particular gene are identical the gene pair is:
A.
B.
C.
D.
E.
62.
Were all tall
Were all short
Were a mix of tall and short
Were nonexistent
None of the above are correct
When Mendel crossed tall plants with tall plants the offspring:
A.
B.
C.
D.
E.
61.
Dominant
Recessive
Homologous
Homozygous
Heterozygous
When Mendel crossed short pea plants with short pea plants the offspring:
A.
B.
C.
D.
E.
60.
No chance, because cystic fibrosis is not an inherited illness
10%
25%
50%
100%
Homologous
Heterozygous
Homozygous
Dominant
Recessive
If an individual is heterozygous for a particular trait:
A.
B.
C.
D.
E.
Each parent contributed a different gene for that trait
The alleles for that trait are the same
Each parent contributed the same gene for that trait
Both B and C are correct
None of the above are correct
9
64.
Phenotype means:
A.
B.
C.
D.
E.
65.
A monohybrid cross is a mating between two individuals that are both:
A.
B.
C.
D.
E.
66.
Are recessive
Are codominant
Only one is expressed when both are present
All the above are correct
None of the above are correct
If the heterozygous phenotype is intermediate between those of the two different homozygotes, this is called:
A.
B.
C.
D.
E.
70.
Homozygous, one
Homozygous, two
Homologous, two
Heterozygous, one
Heterozygous, two
In the ABO blood type system the I A and IB alleles:
A.
B.
C.
D.
E.
69.
1:1
1:2
2:1
3:1
1:3
A dihybrid cross is a mating between two individuals that are each ______________ for ___________ gene (genes).
A.
B.
C.
D.
E.
68.
Heterozygous for one gene
Homozygous for one gene
Heterozygous for two genes
Homozygous for two genes
None of the above are correct
Mendel's monohybrid cross of "Tt" parents resulted in a tall to short ratio of:
A.
B.
C.
D.
E.
67.
The number of gametes in an individual
The number of chromosomes in an individual
The observable expression of the genes in an individual
The combination of alleles in an individual
None of the above are correct
Codominance
Incomplete dominance
Independent assortment
Epistasis
Polygenic
Traits that depend on more than one gene are:
A.
B.
C.
D.
E.
Pleiotropic
Polygenic
Codominant
Recessive
Incomplete dominant traits
10
71.
In a karyotype, the major characteristic (characteristics) that uniquely identify each chromosome is (are):
A.
B.
C.
D.
E.
72.
Linked genes, by definition, are genes that:
A.
B.
C.
D.
E.
73.
Close together
Recessive genes
Far apart
Dominant genes
Mutated genes
To inherit an autosomal dominant disorder a person could receive the disease causing allele from:
A.
B.
C.
D.
E.
77.
Of 9:3:3:1
Of 2:1
That is the same as that for genes that are not linked
Of 3:1
None of the above are correct
Crossing over is more likely to separate genes on a chromosome if they are:
A.
B.
C.
D.
E.
76.
Would have had different results
Would have produced more offspring
Would have produced less offspring
Would have exhibited a typical phenotypic ratio of 9:3:3:1
Would have produced sterile offspring
A dihybrid cross of linked genes theoretically gives a phenotypic ratio:
A.
B.
C.
D.
E.
75.
Have no alleles
Are found in the same species
Are found on the same chromosome
Have more alleles than usual
Are alleles that are found in different daughter cells
If any of the traits that Mendel worked with had been due to linked genes, his dihybrid crosses:
A.
B.
C.
D.
E.
74.
Banding pattern
Size
Centromere position
All of the above are correct
None of the above are correct
The father only, not the mother
The mother only, not the father
The parent who does not exhibit the disease
The mother or the father
None of the above are correct
To inherit an autosomal recessive disorder requires a person to receive the disease causing allele from:
A.
B.
C.
D.
E.
The father only
The mother only
Only the parent having the disease
Only one parent who is homozygous recessive for the disease
Both parents
11
78.
Diagrams depicting family relationships and phenotypes for a genetic disorder are:
A.
B.
C.
D.
E.
79.
The chromosome that plays the largest role in human sex determination is:
A.
B.
C.
D.
E.
80.
To the flow of genetic information in cells
Genetic information passing from DNA to RNA by transcription
Genetic information passing from RNA to protein by translation
All of the above are correct
None of the above are correct
DNA differs from RNA in that:
A.
B.
C.
D.
E.
84.
Adenine pairs with thymine
Cytosine pairs with adenine
Thymine pairs with uracil
Adenine pairs with uracil
All the above are correct
The "Central Dogma" refers:
A.
B.
C.
D.
E.
83.
Only the dominant alleles on his "X" chromosome
Only the homozygous recessive alleles on his "X" chromosome
Both the dominant and recessive alleles on his "X" chromosome
None of the alleles on his "X" chromosome
None of the above are correct
In a molecule of DNA:
A.
B.
C.
D.
E.
82.
The "X" chromosome
Chromosome number 21
The "Y" chromosome
The group of autosomes known as the SRY group
None of the above are correct
A male expresses:
A.
B.
C.
D.
E.
81.
Linkage maps
Pedigree charts
Karyotypes
Punnett squares
Bell-shaped curves
DNA contains uracil
DNA can catalyze chemical reactions
DNA contains thymine
DNA is usually single stranded
DNA contains ribose
The type of RNA that carries the information that specifies a protein is:
A.
B.
C.
D.
E.
Messenger RNA
Transfer RNA
Ribosomal RNA
All of the above are correct
None of the above are correct
12
85.
The type of RNA that helps align the ribosome and mRNA and catalyzes the reaction that creates the peptide bond is:
A.
B.
C.
D.
E.
86.
The type of RNA that carries each amino acid to the ribosome is:
A.
B.
C.
D.
E.
87.
An anticodon
A codon
A promoter
A terminator
An amino acid attachment site
A tRNA molecule is "bilingual" because it binds to:
A.
B.
C.
D.
E.
91.
Transcription
Translation
Replication
Mitosis
Amino acid synthesis
A three base sequence (loop) in tRNA that is complementary to a sequence of three bases in mRNA is:
A.
B.
C.
D.
E.
90.
A codon
An anticodon
A terminator
An amino acid attachment site
A promoter
The process used by cells to convert the mRNA "message" into a sequence of amino acids is:
A.
B.
C.
D.
E.
89.
Messenger RNA
Transfer RNA
Ribosomal RNA
All of the above are correct
None of the above are correct
A DNA sequence that signals a gene's start is:
A.
B.
C.
D.
E.
88.
Messenger RNA
Transfer RNA
Ribosomal RNA
A codon
None of the above are correct
Amino acids and DNA
DNA and mRNA codons
Codons of mRNA and amino acids
Promoters and amino acids
Promoters and terminators
The step of translation in which an mRNA, a small ribosomal subunit and the initiator tRNA are aligned together is:
A.
B.
C.
D.
E.
Mitosis
Initiation
Elongation
Termination
Transcription
13
92.
The step of translation in which amino acids are added one at a time to the growing polypeptide is:
A.
B.
C.
D.
E.
93.
The step of translation in which release factors bind to a stop codon is:
A.
B.
C.
D.
E.
94.
Repressors
Transcription factors
Inducers
TATA boxes
Poly A Tails
A change in a cell's DNA sequence is:
A.
B.
C.
D.
E.
98.
RNA polymerase
DNA polymerase
The repressor
The promoter
Lactose
Proteins that initiate transcription in eukaryotes by recognizing sequences within the promoter region of a gene and attracting
RNA polymerase are:
A.
B.
C.
D.
E.
97.
A proteome
A chromosome
A ribosome
An operon
A replication fork
In the Lac operon, the protein that binds to the operator to prevent transcription is:
A.
B.
C.
D.
E.
96.
Mitosis
Initiation
Elongation
Termination
Transcription
A group of genes and other segments of DNA in Bacteria that are controlled together is:
A.
B.
C.
D.
E.
95.
Mitosis
Initiation
Elongation
Termination
Transcription
Replication
Transcription
Translation
An operon
A mutation
In a "missense" (nonsynonymous) mutation in an exon:
A.
B.
C.
D.
E.
The codon that mutates does not cause a change in the amino acid specified
The codon that mutates causes a change in the amino acid specified
The codon that mutates causes a stop codon to occur instead of the placement of an amino acid
All of the above are correct answers
None of the above are correct
14
99.
In a "silent" (synonymous) mutation that occurs in an exon:
A.
B.
C.
D.
E.
The codon that mutates does not cause a change in the amino acid specified
The codon that mutates causes a change in the amino acid specified
The codon that mutates causes a stop codon to occur instead of the placement of an amino acid
All of the above are correct
None of the above are correct
100. A "frameshift" mutation:
A.
B.
C.
D.
E.
May be caused by an addition of any number of nucleotides (bases) not in multiples of three
May be caused by a deletion of any number of nucleotides (bases) not in multiples of three
Disrupts the reading frame of a gene
Usually destroys a protein's ability to function
All of the above are correct
15
Organismal Biology Section Two Exam Key
1.
In Griffith's experiment demonstrating that bacteria can transfer genetic information, the reason that the type "S" strain
could infect mice and cause pneumonia was because:
A.
B.
C.
D.
E.
They had flagella as a means of movement
They reproduced much faster than type "R" bacteria
They produced a polysaccharide capsule (coat)
All of the above are correct
None of the above are correct
Difficulty Level: Moderate
Hoefnagels - Chapter 07 #9
Question Type: Comprehension
2.
Hershey and Chase showed that the virus T4:
A.
B.
C.
D.
E.
Injects protein into a bacterium
Injects polysaccharide into a bacterium
Injects protein and DNA into a bacterium
Injects RNA into a bacterium
Injects DNA into a bacterium
Difficulty Level: Moderate
Hoefnagels - Chapter 07 #11
Question Type: Comprehension
3.
Chargaff showed that DNA contains equal amounts of adenine and:
A.
B.
C.
D.
E.
Thymine
Uracil
Guanine
Cytosine
Threonine
Difficulty Level: Low
Hoefnagels - Chapter 07 #13
Question Type: Knowledge
4.
The four nitrogen bases that are found in the different nucleotides of DNA are:
A.
B.
C.
D.
E.
Adenine, thymine, cytosine, uracil
Adenine, thymine, cytosine, guanine
Uracil, adenine, cytosine, guanine
Uracil, cytosine, guanine, thymine
None of the above are correct
Difficulty Level: Moderate
Hoefnagels - Chapter 07 #15
Question Type: Knowledge
5.
DNA's base pairs are joined by:
A.
B.
C.
D.
E.
Hydrogen bonds
Covalent bonds
Ionic bonds
All the above are correct
None of the above are correct
Difficulty Level: Moderate
Hoefnagels - Chapter 07 #17
Question Type: Comprehension
1
6.
The genome of an organism is all of its:
A.
B.
C.
D.
E.
Proteins
Genetic material
RNA
Characteristics
All of the above are correct
Difficulty Level: Low
Hoefnagels - Chapter 07 #22
Question Type: Knowledge
7.
In eukaryotic cells DNA is found in the:
A.
B.
C.
D.
E.
Nucleus
Mitochondria
Chloroplasts
All of the above are correct
None of the above are correct
Difficulty Level: Low
Hoefnagels - Chapter 07 #23
Question Type: Knowledge
8.
A sequence of DNA nucleotides coding for a specific protein or RNA molecule is a:
A.
B.
C.
D.
E.
Gene
Genome
Chromosome
All of the above are correct
None of the above are correct
Difficulty Level: Low
Hoefnagels - Chapter 07 #26
Question Type: Knowledge
9.
The process by which DNA reproduces itself is:
A.
B.
C.
D.
E.
Protein synthesis
Aerobic respiration
Substrate-phosphorylation
Replication
Photosynthesis
Difficulty Level: Low
Hoefnagels - Chapter 07 #29
Question Type: Knowledge
10.
DNA replication is:
A.
B.
C.
D.
E.
Conservative
A one-step process
Not carried out by enzymes
Semi-conservative
Not carried out in prokaryotic cells
Difficulty Level: Low
Hoefnagels - Chapter 07 #30
Question Type: Knowledge
2
11.
The enzyme that adds nucleotides to form new strands of DNA is:
A.
B.
C.
D.
E.
Primase
DNA polymerase
ATP synthase
Ligase
Helicase
Difficulty Level: Low
Hoefnagels - Chapter 07 #34
Question Type: Knowledge
12.
A mutation may:
A.
B.
C.
D.
E.
Eliminate the ability of a protein to function
Not alter the functional ability of a protein
Improve the function of a protein
All of the above are correct
None of the above are correct
Difficulty Level: Moderate
Hoefnagels - Chapter 07 #35
Question Type: Comprehension
13.
Requirements for polymerase chain reaction tests include:
A.
B.
C.
D.
E.
A target DNA sequence to be replicated
A heat tolerant DNA polymerase
A supply of the four different DNA nucleotides
Two types of short, laboratory-made primers
All of the above are correct
Difficulty Level: Low
Hoefnagels - Chapter 07 #38
Question Type: Comprehension
14.
Polymerase chain reaction may be used to:
A.
B.
C.
D.
E.
Identify missing persons
Establish genetic relationships
Identify remains
Identify disease-causing genes
All of the above are correct
Difficulty Level: Low
Hoefnagels - Chapter 07 #39
Question Type: Comprehension
15.
If one strand of a DNA molecule has the base sequence of ATGTGCC the complementary strand will read:
A.
B.
C.
D.
E.
ATGTGCC
UACACGG
CGTGTAA
TACACGG
None of the above are correct
Difficulty Level: Moderate
Hoefnagels - Chapter 07 #41
Question Type: Application
3
16.
Apoptosis is also called:
A.
B.
C.
D.
E.
Replication
Mitosis
The cell cycle
Programmed cell death
Programmed cellular reproduction
Difficulty Level: Low
Hoefnagels - Chapter 08 #1
Question Type: Knowledge
17.
Before a cell divides, it must first duplicate its entire ______________:
A.
B.
C.
D.
E.
Genome
Cytoplasmic contents
Cell membrane structure
Array of enzymes
All of the above are correct
Difficulty Level: Moderate
Hoefnagels - Chapter 08 #3
Question Type: Comprehension
18.
A discreet package of DNA and associated proteins in eukaryotes is a:
A.
B.
C.
D.
E.
Nucleus
Ribosome
Chromosome
Golgi body
None of the above are correct
Difficulty Level: Low
Hoefnagels - Chapter 08 #4
Question Type: Knowledge
19.
A nucleosome consists of:
A.
B.
C.
D.
E.
A stretch of DNA
An RNA molecule
A ribosome and RNA
Histones
A stretch of DNA and histones
Difficulty Level: Moderate
Hoefnagels - Chapter 08 #6
Question Type: Knowledge
20.
One of two identical attached copies of a replicated chromosome defines the term:
A.
B.
C.
D.
E.
Centromere
Chromatin
Chromosome
Chromatid
Nucleosome
Difficulty Level: Moderate
Hoefnagels - Chapter 08 #8
Question Type: Knowledge
4
21.
A part of a chromosome that attaches sister chromatids to each other defines the term:
A.
B.
C.
D.
E.
Centromere
Chromatin
Nucleosome
Histone
None of the above are correct
Difficulty Level: Moderate
Hoefnagels - Chapter 08 #9
Question Type: Knowledge
22.
A cell with two full sets of chromosomes would be termed a _______________ cell.
A.
B.
C.
D.
E.
Haploid
Diploid
Sister
Somatic
Germ
Difficulty Level: Low
Hoefnagels - Chapter 08 #13
Question Type: Knowledge
23.
A cell with one set of chromosomes would be termed a ________________ cell.
A.
B.
C.
D.
E.
Haploid
Diploid
Sister
Somatic
None of the above are correct
Difficulty Level: Low
Hoefnagels - Chapter 08 #14
Question Type: Knowledge
24.
The pair of unmatched chromosomes in humans:
A.
B.
C.
D.
E.
Are the sex chromosomes
Are the "X" and "Y" chromosomes
Contain different genes
Determine sex (gender) of humans
All of the above are correct
Difficulty Level: Low
Hoefnagels - Chapter 08 #15
Question Type: Comprehension
25.
The process by which a sperm cell combines with an egg cell is:
A.
B.
C.
D.
E.
Recombination
Replication
Mitosis
Fertilization
Germination
Difficulty Level: Low
Hoefnagels - Chapter 08 #16
Question Type: Knowledge
5
26.
If a sperm cell combines with an egg cell the result is a:
A.
B.
C.
D.
E.
Gamete
Haploid cell
Diploid cell
Duplicated chromosome
None of the above are correct
Difficulty Level: Moderate
Hoefnagels - Chapter 08 #17
Question Type: Application
27.
An example of a haploid cell is:
A.
B.
C.
D.
E.
A sperm cell
A gamete
An egg cell
All of the above are correct
None of the above are correct
Difficulty Level: Low
Hoefnagels - Chapter 08 #18
Question Type: Application
28.
In humans, specialized cells that produce gametes are:
A.
B.
C.
D.
E.
Somatic cells
Sperm cells
Egg cells
Germ cells
None of the above are correct
Difficulty Level: Low
Hoefnagels - Chapter 08 #19
Question Type: Knowledge
29.
In humans, cells that do not produce gametes are collectively called:
A.
B.
C.
D.
E.
Somatic cells
Sperm cells
Egg cells
Germ cells
None of the above are correct
Difficulty Level: Low
Hoefnagels - Chapter 08 #20
Question Type: Knowledge
30.
The splitting of a cell into two daughter cells in the cell cycle is:
A.
B.
C.
D.
E.
Mitosis
Interphase
Metaphase
Anaphase
Cytokinesis
Difficulty Level: Low
Hoefnagels - Chapter 08 #26
Question Type: Knowledge
6
31.
The division of the nucleus during the cell cycle is:
A.
B.
C.
D.
E.
Mitosis
Interphase
Synthesis
Cytokinesis
Replication
Difficulty Level: Low
Hoefnagels - Chapter 08 #27
Question Type: Knowledge
32.
The replication of DNA during the cell cycle occurs during:
A.
B.
C.
D.
E.
Mitosis
Interphase
Cytokinesis
Prophase
Telophase
Difficulty Level: Low
Hoefnagels - Chapter 08 #28
Question Type: Knowledge
33.
The correct sequence for the phases of mitosis is:
A.
B.
C.
D.
E.
Interphase - prophase - telophase - metaphase - anaphase
Interphase - metaphase - anaphase - prophase - telophase
Prophase - metaphase - anaphase - telophase
Anaphase - prophase - metaphase - telophase
Prophase - anaphase - telophase - metaphase
Difficulty Level: Moderate
Hoefnagels - Chapter 08 #30
Question Type: Comprehension
34.
The portion of the cytoskeleton that enables the chromosomes to be separated equally into two sets is the:
A.
B.
C.
D.
E.
Golgi body
Centromere
Centrosome
Kinetochore
Mitotic spindle
Difficulty Level: Moderate
Hoefnagels - Chapter 08 #31
Question Type: Comprehension
35.
The phase of mitosis in which the centromeres split and sister chromatids are pulled to opposite poles of the cell is:
A.
B.
C.
D.
E.
Prophase
Prometaphase
Metaphase
Anaphase
Telophase
Difficulty Level: Moderate
Hoefnagels - Chapter 08 #35
Question Type: Comprehension
7
36.
The phase of mitosis in which the chromosomes are aligned along the equator of the cell is:
A.
B.
C.
D.
E.
Prophase
Prometaphase
Metaphase
Anaphase
Telophase
Difficulty Level: Moderate
Hoefnagels - Chapter 08 #36
Question Type: Comprehension
37.
The phase of mitosis in which the chromosomes condense and centrosomes move to opposite poles of the cell is:
A.
B.
C.
D.
E.
Prophase
Prometaphase
Metaphase
Anaphase
Telophase
Difficulty Level: Moderate
Hoefnagels - Chapter 08 #38
Question Type: Comprehension
38.
Meiosis is a process that produces:
A.
B.
C.
D.
E.
Sperm cells
Egg cells
Gametes
Haploid cells
All of the above are correct
Difficulty Level: Low
Hoefnagels - Chapter 09 #1
Question Type: Comprehension
39.
The process by which a bacterium uses a sex pilus to transfer genetic information to another bacterium is:
A.
B.
C.
D.
E.
Parthenogenesis
Conjugation
Apomixis
Mitosis
Replication
Difficulty Level: Moderate
Hoefnagels - Chapter 09 #2
Question Type: Knowledge
40.
Sexual reproduction is important to the survival of a species in a changing environment because:
A.
B.
C.
D.
E.
Sexual reproduction requires less overall energy expenditure than asexual reproduction
Sexual reproduction requires only one individual
Sexual reproduction produces genetically identical individuals
Sexual reproduction produces genetically different individuals
None of the above are correct
Difficulty Level: Moderate
Hoefnagels - Chapter 09 #3
Question Type: Comprehension
8
41.
If human gametes were diploid:
A.
B.
C.
D.
E.
The products of fertilization would have the same number of chromosomes as their parents
The products of fertilization would have more chromosomes than their parents
The products of fertilization would have fewer chromosomes than their parents
Fertilization could not occur
None of the above are correct
Difficulty Level: Moderate
Hoefnagels - Chapter 09 #7
Question Type: Application
42.
A diploid germ cell reduces its chromosome number by half to generate four haploid nuclei in:
A.
B.
C.
D.
E.
Fertilization
Mitosis
Meiosis
Replication
Parthenogenesis
Difficulty Level: Moderate
Hoefnagels - Chapter 09 #10
Question Type: Comprehension
43.
A zygote is:
A.
B.
C.
D.
E.
A haploid cell
A gamete
The first diploid cell of a new organism
A product of meiosis
All the above are correct
Difficulty Level: Low
Hoefnagels - Chapter 09 #13
Question Type: Knowledge
44.
Human cell's have:
A.
B.
C.
D.
E.
22 pairs of chromosomes
23 pairs of chromosomes
44 chromosomes
2 pairs of sex chromosomes
One pair of autosomes
Difficulty Level: Low
Hoefnagels - Chapter 09 #17
Question Type: Knowledge
45.
The human chromosomes that do not determine whether an individual is male or female are:
A.
B.
C.
D.
E.
Not found in pairs
Autosomes
The "X" and "Y" chromosomes
Called sex chromosomes
None of the above are correct
Difficulty Level: Low
Hoefnagels - Chapter 09 #19
Question Type: Knowledge
9
46.
The chromosomal designation for a human male is:
A.
B.
C.
D.
E.
"XX"
"XO"
"XY"
"YY"
"XXX"
Difficulty Level: Low
Hoefnagels - Chapter 09 #20
Question Type: Knowledge
47.
The chromosomal designation for a human female is:
A.
B.
C.
D.
E.
"XX"
"XYY"
"XY"
"YY"
None of the above are correct
Difficulty Level: Low
Hoefnagels - Chapter 09 #21
Question Type: Knowledge
48.
Chromosomes that look alike and carry the same sequence of genes for the same traits are:
A.
B.
C.
D.
E.
The "X" and "Y" chromosome
All the autosomes
Found in females only
Found in males only
Homologous chromosomes
Difficulty Level: Moderate
Hoefnagels - Chapter 09 #22
Question Type: Knowledge
49.
In meiosis, DNA replicates during:
A.
B.
C.
D.
E.
Prophase one
Prophase two
Interphase one
Interphase two
Metaphase two
Difficulty Level: Moderate
Hoefnagels - Chapter 09 #28
Question Type: Comprehension
50.
In meiosis, homologous chromosomes separate during:
A.
B.
C.
D.
E.
Prophase one
Prophase two
Metaphase one
Anaphase one
Anaphase two
Difficulty Level: Moderate
Hoefnagels - Chapter 09 #30
Question Type: Comprehension
10
51.
In meiosis, paired homologs align down the center of the cell during:
A.
B.
C.
D.
E.
Prophase one
Prophase two
Metaphase one
Metaphase two
Anaphase two
Difficulty Level: Moderate
Hoefnagels - Chapter 09 #32
Question Type: Comprehension
52.
In meiosis, chromosomes containing sister chromatids (not homologous chromosomes) align along the center of the cell
during:
A.
B.
C.
D.
E.
Prophase one
Prophase two
Interphase two
Metaphase one
Metaphase two
Difficulty Level: Moderate
Hoefnagels - Chapter 09 #33
Question Type: Comprehension
53.
In meiosis, the separated sister chromatids move to opposite poles of the cell during:
A.
B.
C.
D.
E.
Metaphase one
Metaphase two
Anaphase one
Anaphase two
Telophase one
Difficulty Level: Moderate
Hoefnagels - Chapter 09 #34
Question Type: Comprehension
54.
In meiosis two, cytokinesis results in the production of:
A.
B.
C.
D.
E.
Four haploid daughter cells
Two haploid daughter cells
Four diploid daughter cells
Two diploid daughter cells
One daughter cell identical to the parent cell that underwent meiosis
Difficulty Level: Moderate
Hoefnagels - Chapter 09 #35
Question Type: Comprehension
55.
Sexual reproduction and meiosis generates genetic variety by:
A.
B.
C.
D.
E.
Random fertilization
Independent assortment
Crossing over
All of the above are correct
None of the above are correct
Difficulty Level: Low
Hoefnagels - Chapter 09 #36
Question Type: Comprehension
11
56.
Alternate forms of the same gene:
A.
B.
C.
D.
E.
Do not exist
Are homologs
Are alleles
Are sister chromatids
Do not occur in the same individual
Difficulty Level: Low
Hoefnagels - Chapter 09 #38
Question Type: Knowledge
57.
A healthy young couple are both carriers of cystic fibrosis, a simple recessive trait, the chance that each of their future
children will inherit this serious illness is:
A.
B.
C.
D.
E.
No chance, because cystic fibrosis is not an inherited illness
10%
25%
50%
100%
Difficulty Level: Low
Hoefnagels - Chapter 10 #3
Question Type: Knowledge
58.
An allele that exerts its effects whenever it is present is:
A.
B.
C.
D.
E.
Dominant
Recessive
Homologous
Homozygous
Heterozygous
Difficulty Level: Low
Hoefnagels - Chapter 10 #14
Question Type: Knowledge
59.
When Mendel crossed short pea plants with short pea plants the offspring:
A.
B.
C.
D.
E.
Were all tall
Were all short
Were a mix of tall and short
Were nonexistent
None of the above are correct
Difficulty Level: Low
Hoefnagels - Chapter 10 #15
Question Type: Knowledge
60.
When Mendel crossed tall plants with tall plants the offspring:
A.
B.
C.
D.
E.
Were always short
Were always tall
Were always a mix of short and tall
Were sometimes tall, but sometimes a mix of tall and short
Did not grow and reproduce
Difficulty Level: Moderate
Hoefnagels - Chapter 10 #16
Question Type: Knowledge
12
61.
If the two alleles for a particular gene are identical the gene pair is:
A.
B.
C.
D.
E.
Homologous
Heterozygous
Homozygous
Dominant
Recessive
Difficulty Level: Moderate
Hoefnagels - Chapter 10 #17
Question Type: Knowledge
62.
If the two alleles for a particular gene are different the gene pair is:
A.
B.
C.
D.
E.
Homologous
Heterozygous
Homozygous
Dominant
Recessive
Difficulty Level: Moderate
Hoefnagels - Chapter 10 #18
Question Type: Knowledge
63.
If an individual is heterozygous for a particular trait:
A.
B.
C.
D.
E.
Each parent contributed a different gene for that trait
The alleles for that trait are the same
Each parent contributed the same gene for that trait
Both B and C are correct
None of the above are correct
Difficulty Level: Moderate
Hoefnagels - Chapter 10 #19
Question Type: Comprehension
64.
Phenotype means:
A.
B.
C.
D.
E.
The number of gametes in an individual
The number of chromosomes in an individual
The observable expression of the genes in an individual
The combination of alleles in an individual
None of the above are correct
Difficulty Level: Moderate
Hoefnagels - Chapter 10 #24
Question Type: Knowledge
65.
A monohybrid cross is a mating between two individuals that are both:
A.
B.
C.
D.
E.
Heterozygous for one gene
Homozygous for one gene
Heterozygous for two genes
Homozygous for two genes
None of the above are correct
Difficulty Level: Moderate
Hoefnagels - Chapter 10 #31
Question Type: Comprehension
13
66.
Mendel's monohybrid cross of "Tt" parents resulted in a tall to short ratio of:
A.
B.
C.
D.
E.
1:1
1:2
2:1
3:1
1:3
Difficulty Level: Moderate
Hoefnagels - Chapter 10 #33
Question Type: Knowledge
67.
A dihybrid cross is a mating between two individuals that are each ______________ for ___________ gene (genes).
A.
B.
C.
D.
E.
Homozygous, one
Homozygous, two
Homologous, two
Heterozygous, one
Heterozygous, two
Difficulty Level: Moderate
Hoefnagels - Chapter 10 #38
Question Type: Comprehension
68.
In the ABO blood type system the I A and IB alleles:
A.
B.
C.
D.
E.
Are recessive
Are codominant
Only one is expressed when both are present
All the above are correct
None of the above are correct
Difficulty Level: Moderate
Hoefnagels - Chapter 10 #41
Question Type: Comprehension
69.
If the heterozygous phenotype is intermediate between those of the two different homozygotes, this is called:
A.
B.
C.
D.
E.
Codominance
Incomplete dominance
Independent assortment
Epistasis
Polygenic
Difficulty Level: Moderate
Hoefnagels - Chapter 10 #42
Question Type: Knowledge
70.
Traits that depend on more than one gene are:
A.
B.
C.
D.
E.
Pleiotropic
Polygenic
Codominant
Recessive
Incomplete dominant traits
Difficulty Level: Moderate
Hoefnagels - Chapter 10 #44
Question Type: Knowledge
14
71.
In a karyotype, the major characteristic (characteristics) that uniquely identify each chromosome is (are):
A.
B.
C.
D.
E.
Banding pattern
Size
Centromere position
All of the above are correct
None of the above are correct
Difficulty Level: Low
Hoefnagels - Chapter 11 #7
Question Type: Comprehension
72.
Linked genes, by definition, are genes that:
A.
B.
C.
D.
E.
Have no alleles
Are found in the same species
Are found on the same chromosome
Have more alleles than usual
Are alleles that are found in different daughter cells
Difficulty Level: Moderate
Hoefnagels - Chapter 11 #11
Question Type: Knowledge
73.
If any of the traits that Mendel worked with had been due to linked genes, his dihybrid crosses:
A.
B.
C.
D.
E.
Would have had different results
Would have produced more offspring
Would have produced less offspring
Would have exhibited a typical phenotypic ratio of 9:3:3:1
Would have produced sterile offspring
Difficulty Level: Moderate
Hoefnagels - Chapter 11 #12
Question Type: Comprehension
74.
A dihybrid cross of linked genes theoretically gives a phenotypic ratio:
A.
B.
C.
D.
E.
Of 9:3:3:1
Of 2:1
That is the same as that for genes that are not linked
Of 3:1
None of the above are correct
Difficulty Level: Moderate
Hoefnagels - Chapter 11 #13
Question Type: Comprehension
75.
Crossing over is more likely to separate genes on a chromosome if they are:
A.
B.
C.
D.
E.
Close together
Recessive genes
Far apart
Dominant genes
Mutated genes
Difficulty Level: Moderate
Hoefnagels - Chapter 11 #15
Question Type: Comprehension
15
76.
To inherit an autosomal dominant disorder a person could receive the disease causing allele from:
A.
B.
C.
D.
E.
The father only, not the mother
The mother only, not the father
The parent who does not exhibit the disease
The mother or the father
None of the above are correct
Difficulty Level: Low
Hoefnagels - Chapter 11 #18
Question Type: Comprehension
77.
To inherit an autosomal recessive disorder requires a person to receive the disease causing allele from:
A.
B.
C.
D.
E.
The father only
The mother only
Only the parent having the disease
Only one parent who is homozygous recessive for the disease
Both parents
Difficulty Level: Moderate
Hoefnagels - Chapter 11 #19
Question Type: Comprehension
78.
Diagrams depicting family relationships and phenotypes for a genetic disorder are:
A.
B.
C.
D.
E.
Linkage maps
Pedigree charts
Karyotypes
Punnett squares
Bell-shaped curves
Difficulty Level: Low
Hoefnagels - Chapter 11 #30
Question Type: Knowledge
79.
The chromosome that plays the largest role in human sex determination is:
A.
B.
C.
D.
E.
The "X" chromosome
Chromosome number 21
The "Y" chromosome
The group of autosomes known as the SRY group
None of the above are correct
Difficulty Level: Low
Hoefnagels - Chapter 11 #36
Question Type: Knowledge
80.
A male expresses:
A.
B.
C.
D.
E.
Only the dominant alleles on his "X" chromosome
Only the homozygous recessive alleles on his "X" chromosome
Both the dominant and recessive alleles on his "X" chromosome
None of the alleles on his "X" chromosome
None of the above are correct
Difficulty Level: Moderate
Hoefnagels - Chapter 11 #38
Question Type: Comprehension
16
81.
In a molecule of DNA:
A.
B.
C.
D.
E.
Adenine pairs with thymine
Cytosine pairs with adenine
Thymine pairs with uracil
Adenine pairs with uracil
All the above are correct
Difficulty Level: Low
Hoefnagels - Chapter 12 #5
Question Type: Knowledge
82.
The "Central Dogma" refers:
A.
B.
C.
D.
E.
To the flow of genetic information in cells
Genetic information passing from DNA to RNA by transcription
Genetic information passing from RNA to protein by translation
All of the above are correct
None of the above are correct
Difficulty Level: Low
Hoefnagels - Chapter 12 #6
Question Type: Comprehension
83.
DNA differs from RNA in that:
A.
B.
C.
D.
E.
DNA contains uracil
DNA can catalyze chemical reactions
DNA contains thymine
DNA is usually single stranded
DNA contains ribose
Difficulty Level: Moderate
Hoefnagels - Chapter 12 #9
Question Type: Knowledge
84.
The type of RNA that carries the information that specifies a protein is:
A.
B.
C.
D.
E.
Messenger RNA
Transfer RNA
Ribosomal RNA
All of the above are correct
None of the above are correct
Difficulty Level: Moderate
Hoefnagels - Chapter 12 #10
Question Type: Knowledge
85.
The type of RNA that helps align the ribosome and mRNA and catalyzes the reaction that creates the peptide bond is:
A.
B.
C.
D.
E.
Messenger RNA
Transfer RNA
Ribosomal RNA
A codon
None of the above are correct
Difficulty Level: Moderate
Hoefnagels - Chapter 12 #11
Question Type: Knowledge
17
86.
The type of RNA that carries each amino acid to the ribosome is:
A.
B.
C.
D.
E.
Messenger RNA
Transfer RNA
Ribosomal RNA
All of the above are correct
None of the above are correct
Difficulty Level: Moderate
Hoefnagels - Chapter 12 #12
Question Type: Knowledge
87.
A DNA sequence that signals a gene's start is:
A.
B.
C.
D.
E.
A codon
An anticodon
A terminator
An amino acid attachment site
A promoter
Difficulty Level: Moderate
Hoefnagels - Chapter 12 #15
Question Type: Knowledge
88.
The process used by cells to convert the mRNA "message" into a sequence of amino acids is:
A.
B.
C.
D.
E.
Transcription
Translation
Replication
Mitosis
Amino acid synthesis
Difficulty Level: Moderate
Hoefnagels - Chapter 12 #17
Question Type: Knowledge
89.
A three base sequence (loop) in tRNA that is complementary to a sequence of three bases in mRNA is:
A.
B.
C.
D.
E.
An anticodon
A codon
A promoter
A terminator
An amino acid attachment site
Difficulty Level: Moderate
Hoefnagels - Chapter 12 #19
Question Type: Knowledge
90.
A tRNA molecule is "bilingual" because it binds to:
A.
B.
C.
D.
E.
Amino acids and DNA
DNA and mRNA codons
Codons of mRNA and amino acids
Promoters and amino acids
Promoters and terminators
Difficulty Level: Moderate
Hoefnagels - Chapter 12 #20
Question Type: Comprehension
18
91.
The step of translation in which an mRNA, a small ribosomal subunit and the initiator tRNA are aligned together is:
A.
B.
C.
D.
E.
Mitosis
Initiation
Elongation
Termination
Transcription
Difficulty Level: Moderate
Hoefnagels - Chapter 12 #21
Question Type: Comprehension
92.
The step of translation in which amino acids are added one at a time to the growing polypeptide is:
A.
B.
C.
D.
E.
Mitosis
Initiation
Elongation
Termination
Transcription
Difficulty Level: Moderate
Hoefnagels - Chapter 12 #22
Question Type: Comprehension
93.
The step of translation in which release factors bind to a stop codon is:
A.
B.
C.
D.
E.
Mitosis
Initiation
Elongation
Termination
Transcription
Difficulty Level: Moderate
Hoefnagels - Chapter 12 #23
Question Type: Comprehension
94.
A group of genes and other segments of DNA in Bacteria that are controlled together is:
A.
B.
C.
D.
E.
A proteome
A chromosome
A ribosome
An operon
A replication fork
Difficulty Level: Moderate
Hoefnagels - Chapter 12 #28
Question Type: Knowledge
95.
In the Lac operon, the protein that binds to the operator to prevent transcription is:
A.
B.
C.
D.
E.
RNA polymerase
DNA polymerase
The repressor
The promoter
Lactose
Difficulty Level: Moderate
Hoefnagels - Chapter 12 #30
Question Type: Comprehension
19
96.
Proteins that initiate transcription in eukaryotes by recognizing sequences within the promoter region of a gene and
attracting RNA polymerase are:
A.
B.
C.
D.
E.
Repressors
Transcription factors
Inducers
TATA boxes
Poly A Tails
Difficulty Level: Moderate
Hoefnagels - Chapter 12 #33
Question Type: Knowledge
97.
A change in a cell's DNA sequence is:
A.
B.
C.
D.
E.
Replication
Transcription
Translation
An operon
A mutation
Difficulty Level: Low
Hoefnagels - Chapter 12 #34
Question Type: Knowledge
98.
In a "missense" (nonsynonymous) mutation in an exon:
A.
B.
C.
D.
E.
The codon that mutates does not cause a change in the amino acid specified
The codon that mutates causes a change in the amino acid specified
The codon that mutates causes a stop codon to occur instead of the placement of an amino acid
All of the above are correct answers
None of the above are correct
Difficulty Level: Moderate
Hoefnagels - Chapter 12 #36
Question Type: Application
99.
In a "silent" (synonymous) mutation that occurs in an exon:
A.
B.
C.
D.
E.
The codon that mutates does not cause a change in the amino acid specified
The codon that mutates causes a change in the amino acid specified
The codon that mutates causes a stop codon to occur instead of the placement of an amino acid
All of the above are correct
None of the above are correct
Difficulty Level: Moderate
Hoefnagels - Chapter 12 #37
Question Type: Application
100.
A "frameshift" mutation:
A.
B.
C.
D.
E.
May be caused by an addition of any number of nucleotides (bases) not in multiples of three
May be caused by a deletion of any number of nucleotides (bases) not in multiples of three
Disrupts the reading frame of a gene
Usually destroys a protein's ability to function
All of the above are correct
Difficulty Level: Low
Hoefnagels - Chapter 12 #38
Question Type: Comprehension
20
Organismal Biology Section Two Exam Summary
Category
# of Questions
Difficulty Level: Low
40
Difficulty Level: Moderate
60
Hoefnagels - Chapter 07
15
Hoefnagels - Chapter 08
22
Hoefnagels - Chapter 09
19
Hoefnagels - Chapter 10
14
Hoefnagels - Chapter 11
10
Hoefnagels - Chapter 12
20
Question Type: Application
6
Question Type: Comprehension
41
Question Type: Knowledge
53
1