8.3

Question 1

Unaffected parents with an affected child

Answer 1

recessive (skipping generations)

Question 2

Sons with a sex-linked trait, affected have…

Answer 2

A mother who is affected, because they gain that X chromosome from mom.

Question 3

Affected daughters can get their trait

Answer 3

From either parents

Question 4

Autosomal dominant needs…

Answer 4

Both parents affected or one, because they only need ONE.

Question 5

Autosomal recessive needs…

Answer 5

Both parents affected or one affected and one carrier.

Question 6

What is a carrier?

Answer 6

Heterozygous (Aa)