A scientist crossed two pea plants, both having the genotype RrYy. The Punnett square representing the cross is shown in the table. The scientist concluded that all of the offspring would have at least one dominant allele for either shape or color. What can be said about his conclusion?

Question

Biology

Kyleigh Meyers

22 March, 21:20

A scientist crossed two pea plants, both having the genotype RrYy. The Punnett square representing the cross is shown in the table. The scientist concluded that all of the offspring would have at least one dominant allele for either shape or color. What can be said about his conclusion?

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Answers (1)

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Celia Ingram · Answer 1

Just look at the possibilities of

RrYy x RrYy

It is possible for some offspring to have the genotype rryy, which obviously has no dominant alleles, so the conclusion is not correct.