Download Review for Unit 6 Exam

Unit 6 Review Game
1
The A, B, AB, and O blood types found in humans refer to the
A
B
C
D
E
2
epistasis.
codominance.
polygenic inheritance.
incomplete dominance.
sex-linked inheritance.
Color blindness is an X-linked recessive trait. A color-blind man has a daughter with normal
color vision. What is the genotype of the daughter?
A
B
C
D
E
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both parents are homozygous dominant.
both parents are heterozygous for both genes.
one parent is homozygous dominant and one parent is heterozygous.
one parent is heterozygous and one parent is homozygous recessive.
one parent is homozygous dominant and one parent is homozygous
recessive.
Skin color and height in humans are influenced by the combined effects of multiple genes.
This is called
A
B
C
D
E
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genotype.
phenotype.
quality of the blood.
frequency of the alleles.
size of the red blood cells.
In a two-factor cross, a phenotypic ratio of 9:3:3:1 in the offspring of a cross indicates that
A
B
C
D
E
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XcY
XCY
XcXc
XCXC
XCXc
As shown in this diagram, eye color in fruit flies is an example of a(n)
A
B
C
D
E
polygenic trait.
sex-linked trait.
codominant trait.
intermediate trait.
multifactorial trait.
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Unit 6 Review Game
6
Freckles (F) and a widow's peak (W) are dominant human traits. John and Sarah have
both, but their son Casey has neither. What are John and Sarah's genotypes?
A
B
C
D
E
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Ff and Ww
FfWw and FfWW
FfWw and FfWw
FFWW and ffww
FFff and WWww
Coat color in Labrador retrievers is an example of epistasis, in which a single trait is
influenced by two separate genes. What is this dog's genotype?
B=black melanin, b=brown melanin
E=full deposition, e=reduced deposition
A
B
C
D
E
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BbEE
Bbee
bbEe
bbee
BbEe
Which of the individuals is homozygous recessive for both of the gene pairs?
A
B
C
D
E
the male parent
the F1 generation
the female parent
both the male and female parents
both the male parent and the F1 generation
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Page 2
Unit 6 Review Game
9
A woman with type AB blood marries a man with type O. What is the probability that their
first child will have either of the parents' blood types?
A
B
C
D
E
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1 black : 1 gray
3 gray : 1 white
1 black : 1 white
3 black : 1 white
1 black : 2 gray : 1 white
In a situation in which genes assort independently, what is the ratio of the gametes
produced by an AaBB individual?
A
B
C
D
E
12
0%
25%
50%
75%
100%
Andalusian chickens with the genotype CBCB are black, those with the genotype CWCW are
white, and those with the genotype CBCW are gray. What is the expected phenotypic ratio
of a CBCW x CBCW cross?
A
B
C
D
E
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1A:1B
3A:1B
3 AB : 1 ab
1 AB : 1 aB
3 AA : 1 BB
The results of the following cross indicates that the
A
B
C
D
E
two genes are linked.
MendAlien species is polyploid.
two genes assort independently.
absence of a tooth is dominant to vertical eyes.
absence of a tooth is dominant to the presence of a tooth.
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Unit 6 Review Game
13
A OoWw x ooww cross yields a phenotypic ratio of approximately 5 black eyes, green skin :
5 orange eyes, white skin : 1 black eyes, white skin : 1 orange eyes, green skin. Which of
the following best explains these results?
A
B
C
D
E
14
ABC
ACB
BCA
CAB
CBA
The results of a F1 testcross are: 250 bald head, four ears : 247 hairy head, six ears : 21
bald head, six ears : 19 hairy head, four ears. How many map units apart are the head and
ear genes?
A
B
C
D
E
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Mendel's law of segregation is being violated.
The genes for eye color and skin color are co-dominant.
Mendel's law of independent assortment is being violated.
Mendel's laws of segregation and independent assortment are being
violated.
The heterozygous individual is male, and the homozygous individual is
female.
The recombination frequency between gene A and gene B is 8.4%, the recombination
frequency between gene A and gene C is 6.8%, and the recombination frequency between
gene B and gene C is 15.2%. Which of these is the correct arrangement of these genes?
A
B
C
D
E
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3.5
3.9
7.5
50.5
92.6
Humans are diploid and have 46 chromosomes. How many chromosomes are found in each
human gamete?
A
B
C
D
E
12
23
36
45
92
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Unit 6 Review Game
17
Given these chromosomes, which of the choices represents the possible recombinant
gametes?
A
B
C
D
E
18
Which of these terms applies to an organism with extra sets of chromosomes?
A
B
C
D
E
diploid
haploid
trisomy
polyploid
monosomy
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Page 5
Unit 6 Review Game
19
Suppose that having three nostrils is a dominant Y-linked character. A woman with two
nostrils mates with a man with three nostrils. What is the expected phenotypic ratio of their
offspring?
A
B
C
D
E
20
Page 6
1 daughter with two nostrils : 1 son with three nostrils
2 daughters with two nostrils: 1 son with two nostrils: 1 son with three
nostrils
2 daughters with three nostrils: 1 son with two nostrils: 1 son with three
nostrils
2 sons with two nostrils: 1 daughter with two nostrils: 1 daughter with three
nostrils
1 daughter with two nostrils: 1 daughter with three nostrils: 1 son with two
nostrils : 1 son with three nostrils
Hypophosphatemia (vitamin D-resistant rickets) is inherited as an X-linked dominant. A
woman without hypophosphatemia and a man with hypophosphatemia have a daughter.
The daughter mates with a male without hypophosphatemia. What is the expected
phenotypic ratio of their offspring?
A
B
C
D
E
1 unaffected daughter : 1 son with hypophosphatemia
1 daughter with hypophosphatemia : 1 unaffected son
3 unaffected females : 1 male with hypophosphatemia
2 unaffected females : 1 unaffected male : 1 male with hypophosphatemia
1 unaffected female : 1 female with hypophosphatemia : 1 unaffected male :
1 male with hypophosphatemia
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Unit 6 Review Game
Page 7
Answer Key : Unit 6 Review Game
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Answer
B
B
C
E
B
C
D
C
A
E
D
A
C
D
C
B
D
D
A
E