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Adv. Biology Chapter 21 Test Review

Authored by Ben Southgate

Biology

9th - 12th Grade

Used 2+ times

Adv. Biology Chapter 21 Test Review
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26 questions

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1.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Aa, DD, bB, yy are all examples of

genotypes
phenotypes

2.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

AA and Aa always show up as

dominant
recessive

3.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Which of the following genotypes is homozygous dominant?

A
Aa
AA
aa

4.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Which of the following genotypes is heterozygous?

Bb
BB
bb
B

5.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

In a heterozygous genotype, the ___________ allele takes over in the phenotype.

recessive
dominant
lower case letter
both 

6.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Media Image

A heterozygous long-tusked elephant is crossed with a homozygous recessive short-tusked elephant. What is the probability of the offspring having short tusks?

0%
25%
50%
75%

7.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Media Image

In mice, black fur (B) is dominant to white fur (b). According to the Punnett square shown, the offspring in box 4 would:

be white.

be heterozygous.

be gray.

be homozygous.

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