In P plants, the allele for tall plants is dominant to the allele for short plants. If a homozygous talk late is crossed with a homozygous short, what percent offspring would you expect to be short.

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Homozygous means this- PP or pp. Heterozygous means this- Pp. So if they are homozygous tall(P) and homozygous short(p), they are represented as- PP x pp. Your outcome is Pp, Pp, Pp, Pp. So you would expect 0% to be short.

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