When Mendel Crossed True-Breeding Pea Plants Bearing Yellow Seeds, the Offspring

Question

When Mendel crossed true-breeding pea plants bearing yellow seeds, the offspring bore
A) all yellow seeds.
B) one-half yellow and one-half green seeds.
C) three yellow seeds and one green seed.
D) all green seeds.

Accepted Answer

True-breeding pea plants will always produce offspring with the same phenotype as the parent. In this case, the parent plants had yellow seeds, which is a dominant trait. Therefore, all of the offspring will also have yellow seeds because they inherited at least one dominant allele from each parent.