Biology Unit 3 Evaluation

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Biology Unit 3 Evaluation

40 multiple choice question

10 vocabulary questions



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Explanation & Answer

Attached.

Running Head: BIOLOGY 1 (SCIH 025 061)

Biology 1 (SCIH 025 061)
Institutional Affiliation
Date

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BIOLOGY 1 (SCIH 025 061)

2
Unit 3 Evaluation
Biology 1 (SCIH 025 061)

Select the response that best completes the statement or answers the question.

1. A white mouse whose parents are both white produces only brown offspring when mated with
a brown mouse. The white mouse is most probably
a. homozygous recessive.
2. In chickens, rose comb (R) is dominant to single comb (r). A homozygous rose-combed
rooster is mated with a single-combed hen. All of the chicks in the F1 generation were kept
together as a group for several years. They were allowed to mate only within their own group.
What is the expected phenotype of the F2 chicks?
b. 75% rose comb and 25% single comb
3. In mink, brown fur color is dominant to silver-blue fur color. If a homozygous brown mink is
mated with a silver-blue mink and 8 offspring are produced, how many would be expected to be
silver-blue?
a. 0
4. This diagram shows a diploid cell with two homologous pairs of chromosomes. Due to
independent assortment, what are the possible allelic combinations that could be found in
gametes produced by meiosis?
b. SY, sY, Sy, and sy

5. Using the following diagram, which process would result in the formation of chromosome C
from chromosomes A and B?

BIOLOGY 1 (SCIH 025 061)

3

c. crossing over
6. If inflated pods are I and constricted pods are c, what is the genotype of first filial generation
(F1) in this diagram?
b. Ic
7. Using the following Punnett square, what fraction of this cross will be recessive...


Anonymous
Really useful study material!

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