The statement that, in garden peas, yellow seed is dominant to green seed means that: A)when a true-breeding yellow seed parent is crossed with a true-breeding green seed parent, all offspring will have green seeds. B)when a true-breeding yellow seed parent is crossed with a true-breeding green seed parent, all offspring will have yellow seeds. C)when a true-breeding yellow seed parent is crossed with a true-breeding green seed parent, ¹/₂ of the offspring will have yellow seeds and ¹/₂ will have green seeds. D)when a true-breeding yellow seed parent is crossed with a true-breeding green seed parent, ³/₄ of the offspring will have yellow seeds and ¹/₄ will have green seeds. E)we can't predict seed color in the offspring of a true-breeding yellow seed parent and a true-breeding green seed parent.

Question

Quizplus · Accepted Answer

Yellow seed is dominant to green seed, which means that when a true-breeding yellow seed parent (genotype YY) is crossed with a true-breeding green seed parent (genotype yy), all of the offspring (F1 generation) will have yellow seeds (genotype Yy). This is because the dominant allele Y masks the recessive allele y, resulting in a heterozygous genotype Yy that expresses the dominant phenotype of yellow seed.

The Statement That, in Garden Peas, Yellow Seed Is Dominant