Question

In pea plants, the allele for yellow seeds is dominant to the allele for green seeds. If a plant that has heterozygous yellow seed is crossed with one that has only homozygous green seeds, what percent of their first generation offspring would you expect to have green seeds?
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Answer 1

heterozygous yellow: (Pp)
homozygouse green: (pp)
here is what the punnet square will befill it out and the odds should be obcious