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Meiosis
Mendel
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DNA
Meiosis 100
Chemistry
of Life
The Cell
100
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300
There are this many
chromosomes in the
somatic cells of an animal
in which 2n = 14.
400
400
400
400
400
400
Answer: 14
500
500
500
500
500
500
Meiosis 200
Meiosis 300
If 2n = 28, there are this
many chromatids in a cell in
which DNA replication has
occurred prior to cell
division.
This type of life cycle
includes both diploid and
haploid stages that are
multicellular.
Answer: alternation of
generation
Answer: 56
Meiosis 400
Meiosis 500
This is the original source
of variation among
different alleles of a gene.
There are this many
different assortments of
maternal chromosomes in a
human gamete.
Answer: mutations
Answer: Approx. 8.4 million
1
Mendel 100
Mendel 200
In this, an organism expressing
the dominant phenotype is
crossed with a recessive
homozygote to determine the
genotype of the phenotypically
dominant organism.
This is the ability of a
single gene to produce
multiple phenotypic
effects.
Answer: testcross
Answer: Pleiotropy
Mendel 300
Mendel 400
This phase of meiosis is
most directly related to
the law of independent
assortment.
Answer: Metaphase I
A dominant allele P causes the
production of purple pigment; pp
individuals are white. A dominant
allele C is also required for color
production; cc individuals are
white. This proportion of offspring
will be purple from a ppCc x PpCc.
Answer: 3/8
Mendel 500
Genetics 100
In this type of cross, the
F2 offspring show a 1:2:1
phenotypic and genotypic
ratio.
This is an X-linked
disorder resulting from
the lack of a key muscle
protein.
Answer: Incomplete
Dominance
Answer: Duchenne Muscular
Dystrophy
2
Genetics 200
Genetics 300
The inactive X in each
cell of a female condenses
into a compact object
called this.
A 1:1:1:1 ratio of
offspring from a dihybrid
test-cross indicates this.
Answer: Barr body
Genetics 400
Answer: The genes are not
linked or are more than 50
map units apart.
Genetics 500
This genetic event most
likely results in Turner
syndrome (XO).
Answer: Nondisjunction
A woman is a carrier for an Xlinked lethal allele that causes an
embryo to spontaneously abort.
She has nine children. How many
of these children do you expect to
be boys?
Answer: 3 boys
DNA 100
DNA 200
This is defined as a change in
genotype and phenotype due
to the assimilation of external
DNA by a cell.
The DNA of an organism has
thymine as 20% of its bases.
What percentage of its bases
would be guanine?
Answer: Transformation
Answer: 30%
3
DNA 300
DNA 400
During replication, this helps
relieve the strain ahead of the
replication fork by breaking,
swiveling, and rejoining
DNA strands.
DNA Polymerase can
synthesize a complementary
strand continuously by
elongating the new DNA in
the _________ direction.
Answer: Topoisomerase
Answer: 5’  3’
DNA 500
Chem 100
Normal shortening of these
may protect organisms from
cancer by limiting the
number of divisions that
somatic cells can undergo.
These are the kingdoms
found in Domain
Eukarya.
Answer: Telomeres
Answer: Plantae, Fungi,
Protist, Animalia
Chem 200
Chem 300
This trace element is an
essential ingredient of a
hormone produced by the
thyroid.
Answer: Iodine
This property of water contributes
to the stability of temperature in
lakes and ponds and also provides
a mechanism that prevents
terrestrial organisms from
overheating.
Answer: Evaporative cooling
4
Chem 400
Chem 500
He concluded that complex
organic molecules could arise
spontaneously under conditions
thought to have existed on early
Earth.
The molecular formula for glucose
is C6H12O6. This is the molecular
formula for a polymer made by
linking ten glucose molecules
together by dehydration reactions.
Answer: Stanley Miller
Answer: C60H102O51
Cells 100
Cells 200
This property allows oxygen
and carbon dioxide to cross a
lipid bilayer without help
from membrane proteins.
This kind of inhibition can
be overcome by increasing
the concentration of
substrate.
Answer: nonpolar
Answer: competitive
inhibition
Cells 300
Cells 400
This process regenerates the
supply of NAD+ needed for
the continuation of
glycolysis in yeast.
This is a metabolic pathway that
consumes oxygen and ATP,
releases carbon dioxide, and
decreases photosynthetic output.
Answer: Alcoholic
fermentation
Answer: Photorespiration
5
Cells 500
This is the name for the group
of enzymes that transfers
phosphate groups from ATP to
a protein, thus
phosphorylating the protein.
Answer: Protein kinase
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