Perform the following cross AA times aa What genotypes do yo

Perform the following cross. AA times aa. What genotype(s) do you expect to get in the offspring? AA, Aa, and aa. aa only. AA only. Aa only. Both AA and aa.

Solution

Answer is Aa

Parent 1 (homozygous dominant AA)

A

A

Parent 2 (homozygous recessive aa)

a

Aa

Aa

a

Aa

Aa

When you cross homozygous dominant AA with homozygous recessive aa, all your progeny will be Aa (heterozygous)

		Parent 1 (homozygous dominant AA)
		A	A
Parent 2 (homozygous recessive aa)	a	Aa	Aa
a	Aa	Aa