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Genetics Test Review Part 2
Test Description: Test Review
Instructions: Answer all questions to get your test result.
1) Which of the following is influenced by polygenic inheritance?
A
sickle cell anemia
B
Tay-Sachs disease
C
hair color
D
blood type
2) Which of the following is an example of codominance?
A
an intermediate or blended flower color in a plant.
B
two traits of a character expressed at the same time
C
many different flower colors in plants
3) Colorblindness
A
is a Y linked trait
B
provides resistance to infections
C
is a sex linked trait
D
is seen in homozygous dominant individuals
4) Black fur is dominant to brown fur in rabbits. White and gray fur exhibit incomplete dominance. How can you find the genotype of a rabbit with black fur?
A
mate the black rabbit with a white rabbit
B
mate the black rabbit with a brown rabbit
C
mate the black rabbit with a gray rabbit
D
mate the black rabbit with another black rabbit
5) An organism with the genotype Aa would be considered...
A
homozygous dominant
B
homozygous recessive
C
heterozygous
6) An organism with a genotype of aa would be considered...
A
homozygous dominant
B
homozygous recessive
C
heterozygous
7) An organism with the genotype AA would be considered...
A
homozygous recessive
B
heterozygous
C
homozygous dominant
8) Which of the following would be an example of heterozygous?
A
AA
B
tt
C
YY
D
Aa
9) Which of the following would be considered homozygous recessive?
A
YY
B
Aa
C
AA
D
tt
10) Which of the following would be considered homozygous dominant?
A
YY
B
Both a and b
C
AA
D
tt
*select an answer for all questions
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