Punnett Squares Review

​Punnett Square Practice

Biology Unit 5​

Fill in the Blanks

Black fur is dominant to brown fur. In a cross between a heterozygous father and a brown mother, what percentage of the offspring will be brown?

Multiple Choice

A woman with sickle cell marries a man who does not carry the trait. Will any of their offspring inherit the disease?

• Yes

• No

Fill in the Blanks

In a case of incomplete dominance, a red flower crosses with a white flower. What color will 100% of the offspring be?

Fill in the Blanks

In a case of codominance, a brown and white cow mates with a brown cow. What percentage of their offspring will be white?

Multiple Choice

A man is homozygous dominant for Type B blood. What are his alleles?

• BB

• BO

• AA

• OO

Multiple Select

A man heterozygous for Type B blood has a child with a heterozygous Type A woman. What are the possible blood types of their children?

• Type A

• Type B

• Type AB

• Type O

Multiple Choice

How many X chromosomes do females have?

• 1

• 2

Fill in the Blanks

A woman is a carrier for colorblindness. If she marries a normal-vision man, what is the probability their sons might be colorblind?

Multiple Choice

How many children did the couple in generation I have?

• 1

• 3

• 5

• 8

Multiple Choice

What is the genotype of individual II-2?

• AA

• Aa

• aa

Multiple Choice

What type of inheritance pattern is this?

• Dominant

• Recessive