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Heredity Punnett square review

Total questions: 20

Worksheet time: 17mins

Name
Class
Date
1.

Green peas are dominant to yellow peas what letter would we use to represent the allele for green peas

a)

G

b)

g

c)

Y

d)

y

2.

Green peas are dominant to yellow peas what letter would we use to represent the allele for yellow peas

a)

G

b)

g

c)

Y

d)

y

3.

Purple flowers are dominant to white flowers. What letter would we use for the purple allele

a)

P

b)

p

c)

W

d)

w

4.

Purple flowers are dominant to white flowers. What letter would we use for the white allele

a)

P

b)

p

c)

W

d)

w

5.

Brown fur is dominant to Gray fur. What letter would we use for the gray allele

a)

B

b)

b

c)

G

d)

g

6.

Red flowers are dominant to Blue flowers cross a Heterozygous flower with a homozygous recessive flower. Choose the correct parent cross below

a)

Rr with rr

b)

Rr with RR

c)

Rb with bb

d)

Rr with bb

7.

Hairy guinea pigs are dominant to hairless guinea pigs. Cross a purbred recessive guinea pig with a purbred dominant guinea pig

a)

Hh with Hh

b)

hh with HH

c)

Hg with gg

d)

Hh with gg

8.

Gray mice are dominant to white mice cross a Hybrid mouse with a Hybrid mouse

a)

Gw with Gw

b)

gw with gw

c)

GG with GG

d)

Gg with Gg

9.

Aqua martians are dominant to yellow martians. Cross a yellow martian with a Heterozygous martian

a)

YY with Yy

b)

aa with Aa

c)

YY with Ay

d)

AA with Aa

10.

Tall pea plant are dominant to short pea plants cross a heterozygous pea plant with a short pea plant

a)

Ts with ss

b)

Tt with Tt

c)

Tt with tt

d)

Ts with tt

11.

What genotype goes in the missing square

a)

aa

b)

Aa

c)

AA

d)

none of the above

12.
a)

HH

b)

Hh

c)

hh

d)

none of the above

13.

What genotype goes in the missing square

a)

Aa

b)

aa

c)

AA

d)

none of the above

14.
a)

Rr

b)

rr

c)

RR

d)

none of the above

15.
a)

gg

b)

GG

c)

Gg

d)

none of the above

16.

Gray fur is dominant to white fur. What is the probability of having the purebred recessive genotype

a)

25%

b)

50%

c)

75%

d)

100%

17.

Gray fur is dominant to white fur what is the probability of having Gray fur

a)

25%

b)

50%

c)

75%

d)

100%

18.

Red flowers are dominant to blue flowers. What is the probability of being Homozygous recessive

a)

25%

b)

50%

c)

75%

d)

100%

19.

Red flowers are dominant to blue flowers what is the probability of having red flowers

a)

25%

b)

50%

c)

75%

d)

1100%

20.

Hairy guinea pigs are dominant to hairless guinea pigs. What is the probability of having hairless guinea pigs

a)

25%

b)

50%

c)

75%

d)

100%