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Predicting Genetic Outcomes

Total questions: 16

Worksheet time: 8mins

Name
Class
Date
1.

Which genotypes are Homozygous Recessive?

a)

AA

b)

Aa

c)

aa

2.

Which genotypes are Homozygous DOMINANT?

a)

AA

b)

Aa

c)

aa

3.

Which genotypes are Heterozygous?

a)

AA

b)

Aa

c)

aa

4.

Which of the following is a type genotype?

a)

AA

b)

Brown hair color

c)

Tall Height

5.

Which genotypes are Homozygous Recessive?

a)

RR

b)

Rr

c)

rr

6.

Which genotypes are Homozygous DOMINANT?

a)

RR

b)

Rr

c)

rr

7.

Which genotypes are Heterozygous?

a)

RR

b)

Rr

c)

rr

8.

What is a genotype?

a)

A physical trait (Example: Tall Height)

b)

Genes represented by letters (Example: Aa)

9.

What is a Phenotype?

a)

A physical trait (Example: Tall Height)

b)

Genes represented by letters (Example: Aa)

10.

If having freckles is RECESSIVE, what is the genotype of a person who has freckles?

a)

FF

b)

Ff

c)

ff

11.

If having dimples is DOMINANT, what is the genotype of a person who has dimples?

a)

DD & Dd

b)

dd

12.

If having dimples is DOMINANT, what is the genotype of a person who DOES NOT have dimples?

a)

DD & Dd

b)

dd

13.

Using the punnett square image, if dimples are DOMINANT, how many of the offspring will have dimples? (Hint: Look at the 4 boxes, how many boxes have at least 1 capital letter D?)

a)

1 out of 4 or 25%

b)

2 out of 4 or 50%

c)

3 out of 4 or 75%

14.

If being round seeds is dominant to wrinkled seeds. What is the genotype of a wrinkled seed?

a)

Rr

b)

rr

c)

RR

d)

wrinkled seeds

15.

If being round seeds is dominant to wrinkled seeds. What is the genotype of a purebred round seed.

a)

RR

b)

rr

c)

Rr

16.

If brown hair is dominant to blonde hair, what is the probability that 2 parents with blonde hair will have brown haired kids?

a)

0%

b)

25%

c)

50%

d)

75%