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Punnett Square Quiz

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

Black fur(B) in guinea pigs is dominant over white fur(b). Find the probability of an offspring with the same phenotype as its parents in a cross between a homozygous black and a heterozygous black guinea pig.

a)

0%

b)

25%

c)

50%

d)

75%

e)

100%

2.

Black fur(B) in guinea pigs is dominant over white fur(b). Find the probability of a hybrid offspring in the cross: BB x Bb.

a)

0%

b)

25%

c)

50%

d)

75%

e)

100%

3.

Black fur(B) in guinea pigs is dominant over white fur(b). Find the probability of a white offspring in a cross between two heterozygous guinea pigs.

a)

0%

b)

25%

c)

50%

d)

75%

e)

100%

4.

Black fur(B) in guinea pigs is dominant over white fur(b). Find the probability of a homozygous offspring in a cross: BB x BB.

a)

0%

b)

25%

c)

50%

d)

75%

e)

100%

5.

Black fur(B) in guinea pigs is dominant over white fur(b). Find the probability of a white offspring in a cross: Bb x bb

a)

0%

b)

25%

c)

50%

d)

75%

e)

100%

6.

Black fur(B) in guinea pigs is dominant over white fur(b). Find the probability of a black offspring in a cross: bb x bb.

a)

0%

b)

25%

c)

50%

d)

75%

e)

100%

7.

Black fur(B) in guinea pigs is dominant over white fur(b). Find the probability of the genotype Bb in a cross: Bb x Bb.

a)

0%

b)

25%

c)

50%

d)

75%

e)

100%

8.

Black fur(B) in guinea pigs is dominant over white fur(b). Find the probability of the genotype BB in a cross: BB x Bb.

a)

0%

b)

25%

c)

50%

d)

75%

e)

100%

9.

Black fur(B) in guinea pigs is dominant over white fur(b). Find the probability of the genotype bb in a cross: Bb x Bb.

a)

0%

b)

25%

c)

50%

d)

75%

e)

100%

10.

Black fur(B) in guinea pigs is dominant over white fur(b). Find the probability of the genotype bb in a cross: BB x Bb.

a)

0%

b)

25%

c)

50%

d)

75%

e)

100%