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Punnett Squares

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

Which genotype is homozygous?

a)

Hh

b)

Ww

c)

DD

d)

Tt

2.

What genotype is heterozygous?

a)

PP

b)

TT

c)

SS

d)

Bb

3.

What is a synonym for hybrid

a)

homozygous

b)

heterozygous

c)

purebred

4.

What does hybrid mean in context to Punnett Squares?

a)

A mix of dominant and recessive alleles

b)

Both dominant alleles

c)

Both recessive alleles

5.

What is a synonym for purebred?

a)

hybrid

b)

heterozygous

c)

homozygous

d)

allele

6.

What does purebred mean in the context of Punnett Squares?

a)

a mix of dominant are recessive alleles

b)

both alleles are the same

c)

hybrid

7.

Which is a dominant allele?

a)

D

b)

d

c)

t

d)

g

8.

Which is a recessive allele?

a)

M

b)

R

c)

Y

d)

d

9.

Genotype refers to what?

a)

The physical appearance of a trait.

b)

cell division

c)

The number of chromosomes

d)

the genes an organism has. For one trait, we use specific letters to represent the dominant and recessive alleles

10.

What is a phenotype?

a)

The letter combination that are used to label the different forms of a gene

b)

The physical traits an organism has due to it's genes

c)

The percentage change for a trait in the offspring

d)

none of the above