Download Chapter 21 - University of Hawaii

Chapter 21
Student: ___________________________________________________________________________
1.
The genetic material that is found principally in the chromosomes is called:
A.DNA
B.RNA
C.ADA
D.NADH
2.
Choose the following that is NOT accurate concerning deoxyribonucleic acid.
A.It constitutes the major portion of chromosomes.
B.It is found within the nucleus of eukaryotes.
C.It can be found within mitochondria.
D.It specifies the sequence of amino acids for protein synthesis.
E.It contains a ribose sugar.
3.
The bases in DNA are joined by hydrogen bonds and this association of complementary bases is called:
A.nondisjunction
B.pair bonding
C.complementary base pairing
D.replication
4.
The process of making a copy of DNA is called:
A.duplication
B.replication
C.isomerization
D.transcription
E.translation
1
5.
DNA bases include all of the following except:
A.adenine
B.thymine
C.cytosine
D.uracil
E.guanine
6.
In complementary base pairing of the DNA molecule, adenine always combines with:
A.adenine
B.thymine
C.cytosine
D.uracil
E.guanine
7.
In complementary base pairing of the DNA molecule, cytosine always combines with:
A.adenine
B.thymine
C.cytosine
D.uracil
E.guanine
8.
Nucleotides are composed of:
A.phosphate, base, protein
B.sugar, protein, sulfur
C.phosphate, sugar, base
D.sugar, sulfur, phosphate
9.
The best description for the overall shape (double helix) of the DNA molecule is:
A.folded sheet
B.twisted ladder
C.stack of books
D.string of beads
2
10. The enzyme which links nucleotides during DNA replication is:
A.ACHase
B.DNA polymerase
C.nuclease
D.protease
11. Mutations can be caused by:
A.errors in the replication process
B.exposure to environmental substances
C.base substitutions
D.All of the choices are correct.
12. Mutations are:
A.changes in the base sequence within a gene
B.always beneficial
C.always harmful
13. In DNA function, the term "template" refers to:
A.complementary RNA
B.strand of DNA nucleotides which carries the information for amino acid order in a specific protein
C.a chain of amino acids being transcribed from DNA
14. Which type of RNA forms the individual subunits of ribosomes?
A.rRNA
B.mRNA
C.tRNA
15. Which type of RNA functions to bring in amino acids in the process of translation?
A.rRNA
B.mRNA
C.tRNA
3
16. Which type of RNA carries the instructions from a template strand of DNA in the nucleus out to the
ribosomes in the cytoplasm?
A.rRNA
B.mRNA
C.tRNA
17. Choose the following base that is NOT associated with RNA.
A.adenine
B.thymine
C.cytosine
D.uracil
E.guanine
18. Which of the following are paired bases in DNA?
A.adenine—guanine; thymine—cytosine
B.adenine—uracil; guanine—cytosine
C.adenine—thymine; guanine—cytosine
D.adenine—adenine; guanine—guanine
E.adenine—cytosine; guanine—thymine
19. In DNA, the amount of adenine is always equal to the amount of:
A.cytosine
B.uracil
C.guanine
D.thymine
E.ATP
20. A nucleotide contains:
A.DNA and RNA
B.a sugar, a phosphate, and a base
C.RNA, protein, and lipids
D.a sugar, a phosphate, and an amino acid
4
21. In the model of DNA, the "rungs" of the ladder are composed of:
A.sugars
B.paired bases
C.phosphates
D.a sugar and a phosphate molecule
22. If 30% of an organism's DNA is thymine, then:
A.70% is deoxyribose
B.20% is guanine
C.20% is adenine
D.40% is guanine
23. In a DNA molecule, the:
A.backbone is composed of covalently bonded bases
B.sugars are composed of 8 carbon rings
C.bases are hydrogen bonded to one another
D.adenine and cytosine base pair to each other
24. Which of the following contains thymine?
A.DNA
B.mRNA
C.rRNA
D.protein
E.tRNA
25. In DNA, what makes up the "sides" of the ladder?
A.sugar-phosphate backbone
B.adenine-phosphate backbone
C.base-phosphate backbone
D.sugar-sugar backbone
5
26. Which of the following is NOT true about DNA?
A.It forms a double helix.
B.Bases are held together by hydrogen bonds.
C.Bases form complementary pairs.
D.It has a deoxyribose sugar.
E.It contains adenine, guanine, cytosine, and uracil.
27. Which of the following is NOT true about mRNA?
A.It is found in the cytoplasm.
B.It contains the sugar ribose.
C.It contains adenine, guanine, uracil, cytosine.
D.It is single-stranded.
E.It forms a double-stranded helix.
28. During DNA replication:
A.each base forms hydrogen bonds with a complementary base
B.each base forms hydrogen bonds with the same type of base
C.bases do not form hydrogen bonds
D.ribose is incorporated into the double helix
29. In normal transcription DNA serves as a template for the synthesis of:
A.more DNA
B.messenger RNA
C.enzymes
D.DNA polymerase
30. In replication DNA serves as a template for the synthesis of:
A.more DNA
B.messenger RNA
C.enzymes
D.DNA polymerase
6
31. The enzyme that joins DNA complementary nucleotides together is:
A.DNA polymerase
B.RNA polymerase
C.helicase
D.ribozyme
E.lipase
32. DNA is:
A.transcribed
B.translated
33. Which of the following carries a copy of DNA's blueprint into the cytoplasm?
A.tRNA
B.rRNA
C.mRNA
D.cDNA
34. The site of protein synthesis in eukaryotes is:
A.the nucleus
B.the plasma membrane
C.the ribosome
D.the mitochondria
35. Every three base code on DNA (a triplet) codes for a single:
A.carbohydrate monomer
B.lipid polymer
C.amino acid
D.nucleic acid
36. A three letter (base) code on the DNA is called:
A.triplet
B.codon
C.anticodon
D.triumvirate
7
37. The universal genetic code describes the fact that:
A.all complementary base pairs align the same way
B.the same codons always stand for the same amino acids
C.transcription always follows translation
D.many organisms have the same proteins
38. A section of DNA that codes for a protein is, by definition, a:
A.a mutation
B.a base pair
C.a gene
D.a chromatid
39. 39.The bases of DNA form what we can think of as "code words" representing the different amino acids.
Each "code word" is composed of:
A.a triplet of nitrogen bases
B.a triplet of amino acids
C.2 nitrogen bases
D.a single nitrogen base
40. Bases of mRNA that are complementary to a triplet of bases of template DNA are called:
A.an anticodon
B.a codon
C.a counter codon
41. The three exposed unpaired bases on a tRNA molecule are called:
A.an anticodon
B.a codon
C.a counter codon
42. Transcribed segments of DNA which contain coded information are called:
A.introns
B.exons
8
43. The synthesis of a polypeptide chain under the direction of the mRNA molecule is called:
A.transcription
B.translation
C.transduction
D.transformation
44. If the codon (on the mRNA) is ACC, then the anticodon (on the tRNA) is:
A.UGA
B.UGG
C.TGG
D.CAA
E.None of the choices are correct.
45. In translation, termination of synthesis occurs at:
A.the codon for the amino acid valine
B.the codon for 'stop' which does not code for an amino acid
C.a special 4-base codon
D.the special 4-base codon for valine
46. Synthesis of polypeptides requires:
A.initiation
B.elongation
C.termination
D.All of the choices are correct.
47. Several ribosomes, collectively, are called:
A.multisomes
B.polyribosomes
C.oligosomes
D.deuterosomes
9
48. The primary level of control for gene expression that functions to turn on only selected genes within the
nucleus is called:
A.transcriptional control
B.posttranscriptional control
C.translational control
D.posttranslational control
49. During cell division, the genetic material:
A.stores new information
B.is replicated
C.undergoes rare mutations
D.is sequestered in the cytoplasm
50. If one strand of DNA has the base sequence ATCGTA, what will the complementary strand have?
A.TAGCAT
B.ATCGTA
C.CAGTCT
D.ATGCTA
51. Before protein synthesis, DNA:
A.attracts tRNAs with appropriate amino acids
B.serves as a template for the production of mRNA
C.adheres to ribosomes for protein synthesis
D.contains anticodons that become codons
E.All of the choices are correct.
52. The triplet code consists of ___ bases that designate one amino acid.
A.2
B.3
C.4
D.8
E.20
10
53. Transcription of part of a DNA molecule with a nucleotide sequence of AAACAACTT results in an
mRNA molecule with which complementary sequence?
A.GGGAACC
B.UUUGUUGAA
C.TTTGAAGCC
D.CCCACCTCC
54. Transcription takes place:
A.in the nucleus
B.in the cytoplasm
C.on free ribosomes
D.in the rough endoplasmic reticulum
55. Translation takes place:
A.in the nucleus
B.outside the cell
C.on ribosomes
D.in the mitochondria
56. The function of transfer RNA is to:
A.carry amino acids to ribosomal sites
B.transfer nucleotides to the nucleus
C.transmit coded information to the cytoplasm
D.turn the DNA on and off
E.All of the choices are correct.
57. A primary mRNA molecule becomes a mature mRNA molecule following:
A.capping one end with an altered guanine nucleotide
B.poly-A tail is added to one end
C.introns are removed
D.All of the choices are correct.
11
58. The term "triplet code" is a code for a(n):
A.nucleotide unit
B.nucleic acid
C.amino acid
D.fatty acid
59. Which of the following carries amino acids to ribosomal sites?
A.DNA
B.mRNA
C.rRNA
D.protein
E.tRNA
60. Messenger RNA is produced in the:
A.cytoplasm
B.ribosomes
C.nucleus
D.mitochondria
61. Which of the following is a nucleic acid found in ribosomes and is an important building block of
ribosomes?
A.DNA
B.mRNA
C.rRNA
D.protein
E.tRNA
62. The Human Genome Project has revealed that human DNA has approximately:
A.30,000 bases
B.300,000 bases
C.3 million bases
D.3 billion bases
12
63. DNA from two or more sources is called:
A.recombinant DNA
B.PCR
C.vector
D.plasmid
E.None of the choices are correct.
64. Small accessory rings of DNA from bacteria, often used in recombinant DNA technologies are:
A.vectors
B.plastids
C.plasmids
D.viroids
65. Which of the following attaches DNA segments together?
A.restriction enzyme
B.DNA ligase
66. Which of the following is the function of DNA ligase?
A.seals DNA together
B.cleaves vectors DNA
67. The automated laboratory procedure that can create millions of copies a single gene is:
A.cDNA
B.PCR
C.DNA fingerprinting
D.vector analysis
E.immune phosphorescence
68. Following DNA amplification, restriction enzymes, and gel electrophoresis, the resultant DNA fragment
band analysis is called:
A.cDNA
B.PCR
C.DNA fingerprinting
D.vector analysis
E.immune phosphorescence
13
69. In recombinant DNA research, the plasmids are taken from:
A.human cells
B.animal cells
C.bacterial cells
D.any kind of cell
70. The enzyme that seals breaks in a DNA molecule is called:
A.helicase
B.restriction enzyme EcoR1
C.ligase
D.restrictive ligase enzyme
71. In the recombinant DNA process:
A.plasmid DNA is cut open, then foreign DNA is inserted
B.foreign DNA is inserted before the plasmid DNA is cut open
C.restriction enzymes stimulate bacterial growth
D.restriction enzymes cleave DNA at random locations
E.DNA ligase creates a break in the plasmid DNA
72. Restriction enzymes:
A.are found naturally in eukaryotic animal cells
B.are found naturally in plant cells
C.will cut a DNA molecule at specific locations
D.will cut a DNA molecule at any location
E.will restrict the growth of bacteria
73. Which process is able to make millions of copies of a single gene in a test tube?
A.DNA probe
B.recombinant DNA technique
C.polymerase chain reaction
D.ligase chain reaction
E.DNA fingerprinting
14
74. What portion of a bacterial cell is used as a vector to transfer genes to another organism?
A.ribosome
B.cell wall
C.nucleus
D.plasmid
75. The use of transgenic farm animals to produce pharmaceuticals describes:
A.PCR
B.gene pharming
C.DNA fingerprinting
D.gel electrophoresis
E.None of the choices are correct.
76. The use of genetically engineered animals to produce pharmaceuticals in milk is called:
A.PCR
B.gene pharming
C.DNA fingerprinting
D.gel electrophoresis
E.None of the choices are correct.
15
Chapter 21 Key
1.
The genetic material that is found principally in the chromosomes is called:
A
b.
c.
d.
DNA
RNA
ADA
NADH
Mader - 021 Chapter... #1
2.
Choose the following that is NOT accurate concerning deoxyribonucleic acid.
a.
b.
c.
d.
E
It constitutes the major portion of chromosomes.
It is found within the nucleus of eukaryotes.
It can be found within mitochondria.
It specifies the sequence of amino acids for protein synthesis.
It contains a ribose sugar.
Mader - 021 Chapter... #2
3.
The bases in DNA are joined by hydrogen bonds and this association of complementary bases is
called:
a.
b.
C
d.
nondisjunction
pair bonding
complementary base pairing
replication
Mader - 021 Chapter... #3
4.
The process of making a copy of DNA is called:
a.
B
c.
d.
e.
duplication
replication
isomerization
transcription
translation
Mader - 021 Chapter... #4
1
5.
DNA bases include all of the following except:
a.
b.
c.
D
e.
adenine
thymine
cytosine
uracil
guanine
Mader - 021 Chapter... #5
6.
In complementary base pairing of the DNA molecule, adenine always combines with:
a.
B
c.
d.
e.
adenine
thymine
cytosine
uracil
guanine
Mader - 021 Chapter... #6
7.
In complementary base pairing of the DNA molecule, cytosine always combines with:
a.
b.
c.
d.
E
adenine
thymine
cytosine
uracil
guanine
Mader - 021 Chapter... #7
8.
Nucleotides are composed of:
a.
b.
C
d.
phosphate, base, protein
sugar, protein, sulfur
phosphate, sugar, base
sugar, sulfur, phosphate
Mader - 021 Chapter... #8
2
9.
The best description for the overall shape (double helix) of the DNA molecule is:
a.
B
c.
d.
folded sheet
twisted ladder
stack of books
string of beads
Mader - 021 Chapter... #9
10.
The enzyme which links nucleotides during DNA replication is:
a.
B
c.
d.
ACHase
DNA polymerase
nuclease
protease
Mader - 021 Chapter... #10
11.
Mutations can be caused by:
a.
b.
c.
D
errors in the replication process
exposure to environmental substances
base substitutions
All of the choices are correct.
Mader - 021 Chapter... #11
12.
Mutations are:
A changes in the base sequence within a gene
b. always beneficial
c. always harmful
Mader - 021 Chapter... #12
13.
In DNA function, the term "template" refers to:
a. complementary RNA
B strand of DNA nucleotides which carries the information for amino acid order in a specific protein
c. a chain of amino acids being transcribed from DNA
Mader - 021 Chapter... #13
3
14.
Which type of RNA forms the individual subunits of ribosomes?
A rRNA
b. mRNA
c. tRNA
Mader - 021 Chapter... #14
15.
Which type of RNA functions to bring in amino acids in the process of translation?
a. rRNA
b. mRNA
C tRNA
Mader - 021 Chapter... #15
16.
Which type of RNA carries the instructions from a template strand of DNA in the nucleus out to the
ribosomes in the cytoplasm?
a. rRNA
B mRNA
c. tRNA
Mader - 021 Chapter... #16
17.
Choose the following base that is NOT associated with RNA.
a.
B
c.
d.
e.
adenine
thymine
cytosine
uracil
guanine
Mader - 021 Chapter... #17
18.
Which of the following are paired bases in DNA?
a.
b.
C
d.
e.
adenine—guanine; thymine—cytosine
adenine—uracil; guanine—cytosine
adenine—thymine; guanine—cytosine
adenine—adenine; guanine—guanine
adenine—cytosine; guanine—thymine
Mader - 021 Chapter... #18
4
19.
In DNA, the amount of adenine is always equal to the amount of:
a.
b.
c.
D
e.
cytosine
uracil
guanine
thymine
ATP
Mader - 021 Chapter... #19
20.
A nucleotide contains:
a.
B
c.
d.
DNA and RNA
a sugar, a phosphate, and a base
RNA, protein, and lipids
a sugar, a phosphate, and an amino acid
Mader - 021 Chapter... #20
21.
In the model of DNA, the "rungs" of the ladder are composed of:
a.
B
c.
d.
sugars
paired bases
phosphates
a sugar and a phosphate molecule
Mader - 021 Chapter... #21
22.
If 30% of an organism's DNA is thymine, then:
a.
B
c.
d.
70% is deoxyribose
20% is guanine
20% is adenine
40% is guanine
Mader - 021 Chapter... #22
5
23.
In a DNA molecule, the:
a.
b.
C
d.
backbone is composed of covalently bonded bases
sugars are composed of 8 carbon rings
bases are hydrogen bonded to one another
adenine and cytosine base pair to each other
Mader - 021 Chapter... #23
24.
Which of the following contains thymine?
A
b.
c.
d.
e.
DNA
mRNA
rRNA
protein
tRNA
Mader - 021 Chapter... #24
25.
In DNA, what makes up the "sides" of the ladder?
A
b.
c.
d.
sugar-phosphate backbone
adenine-phosphate backbone
base-phosphate backbone
sugar-sugar backbone
Mader - 021 Chapter... #25
26.
Which of the following is NOT true about DNA?
a.
b.
c.
d.
E
It forms a double helix.
Bases are held together by hydrogen bonds.
Bases form complementary pairs.
It has a deoxyribose sugar.
It contains adenine, guanine, cytosine, and uracil.
Mader - 021 Chapter... #26
6
27.
Which of the following is NOT true about mRNA?
a.
b.
c.
d.
E
It is found in the cytoplasm.
It contains the sugar ribose.
It contains adenine, guanine, uracil, cytosine.
It is single-stranded.
It forms a double-stranded helix.
Mader - 021 Chapter... #27
28.
During DNA replication:
A
b.
c.
d.
each base forms hydrogen bonds with a complementary base
each base forms hydrogen bonds with the same type of base
bases do not form hydrogen bonds
ribose is incorporated into the double helix
Mader - 021 Chapter... #28
29.
In normal transcription DNA serves as a template for the synthesis of:
a.
B
c.
d.
more DNA
messenger RNA
enzymes
DNA polymerase
Mader - 021 Chapter... #29
30.
In replication DNA serves as a template for the synthesis of:
A
b.
c.
d.
more DNA
messenger RNA
enzymes
DNA polymerase
Mader - 021 Chapter... #30
7
31.
The enzyme that joins DNA complementary nucleotides together is:
A
b.
c.
d.
e.
DNA polymerase
RNA polymerase
helicase
ribozyme
lipase
Mader - 021 Chapter... #31
32.
DNA is:
A transcribed
b. translated
Mader - 021 Chapter... #32
33.
Which of the following carries a copy of DNA's blueprint into the cytoplasm?
a.
b.
C
d.
tRNA
rRNA
mRNA
cDNA
Mader - 021 Chapter... #33
34.
The site of protein synthesis in eukaryotes is:
a.
b.
C
d.
the nucleus
the plasma membrane
the ribosome
the mitochondria
Mader - 021 Chapter... #34
35.
Every three base code on DNA (a triplet) codes for a single:
a.
b.
C
d.
carbohydrate monomer
lipid polymer
amino acid
nucleic acid
Mader - 021 Chapter... #36
8
36.
A three letter (base) code on the DNA is called:
A
b.
c.
d.
triplet
codon
anticodon
triumvirate
Mader - 021 Chapter... #35
37.
The universal genetic code describes the fact that:
a.
B
c.
d.
all complementary base pairs align the same way
the same codons always stand for the same amino acids
transcription always follows translation
many organisms have the same proteins
Mader - 021 Chapter... #37
38.
A section of DNA that codes for a protein is, by definition, a:
a.
b.
C
d.
a mutation
a base pair
a gene
a chromatid
Mader - 021 Chapter... #38
39.
39.The bases of DNA form what we can think of as "code words" representing the different amino
acids. Each "code word" is composed of:
A
b.
c.
d.
a triplet of nitrogen bases
a triplet of amino acids
2 nitrogen bases
a single nitrogen base
Mader - 021 Chapter... #39
40.
Bases of mRNA that are complementary to a triplet of bases of template DNA are called:
a. an anticodon
B a codon
c. a counter codon
Mader - 021 Chapter... #40
9
41.
The three exposed unpaired bases on a tRNA molecule are called:
A an anticodon
b. a codon
c. a counter codon
Mader - 021 Chapter... #41
42.
Transcribed segments of DNA which contain coded information are called:
a. introns
B exons
Mader - 021 Chapter... #42
43.
The synthesis of a polypeptide chain under the direction of the mRNA molecule is called:
a.
B
c.
d.
transcription
translation
transduction
transformation
Mader - 021 Chapter... #45
44.
If the codon (on the mRNA) is ACC, then the anticodon (on the tRNA) is:
a.
B
c.
d.
e.
UGA
UGG
TGG
CAA
None of the choices are correct.
Mader - 021 Chapter... #46
45.
In translation, termination of synthesis occurs at:
a.
B
c.
d.
the codon for the amino acid valine
the codon for 'stop' which does not code for an amino acid
a special 4-base codon
the special 4-base codon for valine
Mader - 021 Chapter... #47
10
46.
Synthesis of polypeptides requires:
a.
b.
c.
D
initiation
elongation
termination
All of the choices are correct.
Mader - 021 Chapter... #48
47.
Several ribosomes, collectively, are called:
a.
B
c.
d.
multisomes
polyribosomes
oligosomes
deuterosomes
Mader - 021 Chapter... #49
48.
The primary level of control for gene expression that functions to turn on only selected genes within
the nucleus is called:
A
b.
c.
d.
transcriptional control
posttranscriptional control
translational control
posttranslational control
Mader - 021 Chapter... #50
49.
During cell division, the genetic material:
a.
B
c.
d.
stores new information
is replicated
undergoes rare mutations
is sequestered in the cytoplasm
Mader - 021 Chapter... #55
50.
If one strand of DNA has the base sequence ATCGTA, what will the complementary strand have?
A
b.
c.
d.
TAGCAT
ATCGTA
CAGTCT
ATGCTA
Mader - 021 Chapter... #56
11
51.
Before protein synthesis, DNA:
a.
B
c.
d.
e.
attracts tRNAs with appropriate amino acids
serves as a template for the production of mRNA
adheres to ribosomes for protein synthesis
contains anticodons that become codons
All of the choices are correct.
Mader - 021 Chapter... #57
52.
The triplet code consists of ___ bases that designate one amino acid.
a.
B
c.
d.
e.
2
3
4
8
20
Mader - 021 Chapter... #58
53.
Transcription of part of a DNA molecule with a nucleotide sequence of AAACAACTT results in an
mRNA molecule with which complementary sequence?
a.
B
c.
d.
GGGAACC
UUUGUUGAA
TTTGAAGCC
CCCACCTCC
Mader - 021 Chapter... #59
54.
Transcription takes place:
A
b.
c.
d.
in the nucleus
in the cytoplasm
on free ribosomes
in the rough endoplasmic reticulum
Mader - 021 Chapter... #60
12
55.
Translation takes place:
a.
b.
C
d.
in the nucleus
outside the cell
on ribosomes
in the mitochondria
Mader - 021 Chapter... #61
56.
The function of transfer RNA is to:
A
b.
c.
d.
e.
carry amino acids to ribosomal sites
transfer nucleotides to the nucleus
transmit coded information to the cytoplasm
turn the DNA on and off
All of the choices are correct.
Mader - 021 Chapter... #62
57.
A primary mRNA molecule becomes a mature mRNA molecule following:
a.
b.
c.
D
capping one end with an altered guanine nucleotide
poly-A tail is added to one end
introns are removed
All of the choices are correct.
Mader - 021 Chapter... #63
58.
The term "triplet code" is a code for a(n):
a.
b.
C
d.
nucleotide unit
nucleic acid
amino acid
fatty acid
Mader - 021 Chapter... #64
13
59.
Which of the following carries amino acids to ribosomal sites?
a.
b.
c.
d.
E
DNA
mRNA
rRNA
protein
tRNA
Mader - 021 Chapter... #66
60.
Messenger RNA is produced in the:
a.
b.
C
d.
cytoplasm
ribosomes
nucleus
mitochondria
Mader - 021 Chapter... #67
61.
Which of the following is a nucleic acid found in ribosomes and is an important building block of
ribosomes?
a.
b.
C
d.
e.
DNA
mRNA
rRNA
protein
tRNA
Mader - 021 Chapter... #68
62.
The Human Genome Project has revealed that human DNA has approximately:
a.
b.
c.
D
30,000 bases
300,000 bases
3 million bases
3 billion bases
Mader - 021 Chapter... #70
14
63.
DNA from two or more sources is called:
A
b.
c.
d.
e.
recombinant DNA
PCR
vector
plasmid
None of the choices are correct.
Mader - 021 Chapter... #73
64.
Small accessory rings of DNA from bacteria, often used in recombinant DNA technologies are:
a.
b.
C
d.
vectors
plastids
plasmids
viroids
Mader - 021 Chapter... #75
65.
Which of the following attaches DNA segments together?
a. restriction enzyme
B DNA ligase
Mader - 021 Chapter... #76
66.
Which of the following is the function of DNA ligase?
A seals DNA together
b. cleaves vectors DNA
Mader - 021 Chapter... #77
67.
The automated laboratory procedure that can create millions of copies a single gene is:
a.
B
c.
d.
e.
cDNA
PCR
DNA fingerprinting
vector analysis
immune phosphorescence
Mader - 021 Chapter... #78
15
68.
Following DNA amplification, restriction enzymes, and gel electrophoresis, the resultant DNA
fragment band analysis is called:
a.
b.
C
d.
e.
cDNA
PCR
DNA fingerprinting
vector analysis
immune phosphorescence
Mader - 021 Chapter... #79
69.
In recombinant DNA research, the plasmids are taken from:
a.
b.
C
d.
human cells
animal cells
bacterial cells
any kind of cell
Mader - 021 Chapter... #81
70.
The enzyme that seals breaks in a DNA molecule is called:
a.
b.
C
d.
helicase
restriction enzyme EcoR1
ligase
restrictive ligase enzyme
Mader - 021 Chapter... #82
71.
In the recombinant DNA process:
A
b.
c.
d.
e.
plasmid DNA is cut open, then foreign DNA is inserted
foreign DNA is inserted before the plasmid DNA is cut open
restriction enzymes stimulate bacterial growth
restriction enzymes cleave DNA at random locations
DNA ligase creates a break in the plasmid DNA
Mader - 021 Chapter... #83
16
72.
Restriction enzymes:
a.
b.
C
d.
e.
are found naturally in eukaryotic animal cells
are found naturally in plant cells
will cut a DNA molecule at specific locations
will cut a DNA molecule at any location
will restrict the growth of bacteria
Mader - 021 Chapter... #84
73.
Which process is able to make millions of copies of a single gene in a test tube?
a.
b.
C
d.
e.
DNA probe
recombinant DNA technique
polymerase chain reaction
ligase chain reaction
DNA fingerprinting
Mader - 021 Chapter... #85
74.
What portion of a bacterial cell is used as a vector to transfer genes to another organism?
a.
b.
c.
D
ribosome
cell wall
nucleus
plasmid
Mader - 021 Chapter... #86
75.
The use of transgenic farm animals to produce pharmaceuticals describes:
a.
B
c.
d.
e.
PCR
gene pharming
DNA fingerprinting
gel electrophoresis
None of the choices are correct.
Mader - 021 Chapter... #87
17
76.
The use of genetically engineered animals to produce pharmaceuticals in milk is called:
a.
B
c.
d.
e.
PCR
gene pharming
DNA fingerprinting
gel electrophoresis
None of the choices are correct.
Mader - 021 Chapter... #88
18
Chapter 21 Summary
Category
Mader - 021 Chapter...
1
# of
Questions
76