Question

what ratio of the offspring will be "pprr ?"
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Answer 1

Explanation:

When Aa is crossed with aa

Parents: Aa x aa

Gametes: A, a and a, a

Offspring: Aa, Aa, aa, aa

So, there is 1:1 phenotypic ratio in the offsprings.

(b) When AA is crossed with aa

Parents: AA x aa

Gametes: A, A and a, a

Offspring: Aa, Aa, Aa, Aa

So, there is 1:0 phenotypic ratio in the offsprings.