In Mendel's pea plants,yellow seeds are dominant to green seeds.If a true-breeding green-seed-producing plant is crossed to a heterozygous yellow-seed-producing plant,what percentage of offspring produces green seeds?

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In this cross, the true-breeding green-seed-producing plant would have a genotype of "yy" (since green is recessive), and the heterozygous yellow-seed-producing plant would have a genotype of "Yy". When these are crossed (Yy x yy), 50% of the offspring will be "Yy" (yellow seeds) and 50% will be "yy" (green seeds). Therefore, 50% of the offspring will produce green seeds.

In Mendel's Pea Plants,yellow Seeds Are Dominant to Green Seeds