Free Printable Punnett Square Quiz

Worksheets

Punnett Square Quiz

Total questions: 20

Worksheet time: 51mins

Name

Class

Date

homozygous

heterozygous

homozygous

heterozygous

Blue body color is dominant to green. Determine the phenotype for each genotype.
BB

blue

green

Blue body color is dominant to green. Determine the phenotype for each genotype.
Bb

blue

green

Tall eyeballs are dominant to short eyeballs. Give the genotypes that are possible for each phenotype.
Tall eyeballs

TT,Tt

Spongeburt is known for his big round eyes (R), which is dominant over an oval eye shape (r). If he is heterozygous for his round eye shape and marries a woman with an oval eye shape, what type of eyes might the kids have?

50% round, 50% oval

75% round, 25% oval

25% round, 75% oval

Patrick recently married Patti, a cute girl he met at a local dance. He is considered a purebred for his tall head shape (T), which is dominant over a short head (t). If Pattis is a short-headed woman, what type of heads would their children have?

4 TT

4 Tt

3 TT, 1 Tt

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.

25%

50%

75%

100%

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.

25%

50%

75%

100%

10.

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.

25%

50%

75%

100%

11.

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

25%

50%

75%

100%

12.

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.

25%

50%

75%

100%

13.

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.

25%

50%

75%

100%

14.

What is a genotype?

A. Genes from the parents

B. Physical traits

C. Traits

D. characteristics

15.

What does phenotype mean?

A. Genes passed down from the parents

B. Genes from your parents

C. Mental traits

D. Physical traits

16.

In guinea pigs, a rough coat (R) is dominant over a smooth coat (r). what must be the genotype of a guinea pig with a smooth coat?

17.

In cabbage butterflies, White wings are dominant to yellow wings. If a Ww butterfly is crossed with a ww butterfly, what percentage of butterflies will have yellow wings?

25%

50%

75%

100%

18.

If butterflies can have straight or curly antennae, and curly is recessive; what is the possibility (using %'age) that a pure breeding straight is crossed with a hybrid straight, will have offspring with straight antennae?

25%

50%

75%

100%

19.

different forms of the same gene are called

alleles

genetics

p generation

law of segregation

20.

Brown eyes is a dominant allele and blue eyes is the recessive allele. If one of the offspring has blue eyes what are the genotypes of the parents?

BB & bb

Bb &BB

BB & BB

Bb & Bb

Reset

Punnett Square Quiz

Total questions: 20

Worksheet time: 51mins

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