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Punnett Square Quiz

Total questions: 12

Worksheet time: 8mins

Name
Class
Date
1.

In penguins, Red beaks (B) are Dominant over Orange Beaks (b).  A male penguin with a orange beak, (bb) is crossed with a female penguin with a Red beak, (Bb).  On your paper, make a Punnett square the select the correct outcome.

a)

BB - 0%

Bb - 50%

bb - 50%

b)

BB - 0%

Bb - 100%

bb - 0%

c)

BB - 25%

Bb - 50%

bb - 25%

2.

In Frogs, green (G) are dominant over blue frogs (g). If a green frog with the alleles Gg and a blue frog (gg) had babies, what is the probable outcome? Please draw your Punnett square!

a)

GG - 100%

Gg - 0%

gg - 0%

b)

GG - 0%

Gg - 50%

gg - 50%

c)

GG - 25%

Gg - 50%

gg - 25%

3.

Pink skin color is dominant to blue in octopi. If a PP octopus were to mate with a Pp octopus, what color will their offspring be? Complete the Punnett square on your paper and select the correct outcome.

a)

PP - 25%

Pp - 50%

pp - 25%

b)

PP - 100%

Pp - 0%

pp - 0%

c)

PP - 50%

Pp - 50%

pp - 0%

4.

Golden birds (G) are dominant over white birds (g). What will the offspring look like with TWO birds who are BOTH heterozygous golden (Gg)?  Complete the Punnett square on your paper and select the correct outcome.

a)

GG - 25%

Gg - 50%

gg - 25%

b)

GG - 100%

Gg - 0%

gg - 0%

c)

GG - 75%

Gg - 25%

gg - 0%

5.

For parents who are both Bb, 50% of the offspring will be...(type the correct letters)

(a)  

6.

For parents who are BB and bb, 100% of the offspring will be...(type the correct letters)

(a)  

7.

For parents who are BB and Bb, what percent of offspring will be BB? (type percentage)

(a)  

8.

For parents who are bb and bb, what percent of the offspring will be BB? (type percentage)

(a)  

9.

What is the difference between genotype and phenotype?

a)

Genotype is an organisms appearance; phenotype is DNA.

b)

Phenotype is an organism's appearance; genotype is their genetic code

c)

They are actually different words for the same thing.

10.

If an organisms is homozygous dominant for brown eyes (B), then their genotype is...

a)

BB

b)

Bb

c)

bb

11.

If brown eyes (B) are dominant to blue eyes (b), then the phenotype of an individual with Bb would be...

a)

Brown eyes

b)

Hazel eyes

c)

blue eyes

12.

In superheroes, the ability to fly (F) is dominant over not being able to fly (f). If Superman (Ff) and Wonde Woman (Ff) were to have a super baby, what are the chances their baby would be able to fly? Complete your Punnett square on your paper.

a)

100%

b)

75%

c)

25%