In pea plants, yellow (Y) seed color is a dominant trait, and green seed color (y) is a recessive trait.

Question

Which resulting plant with yellow seeds could produce a plant with green seeds in the next generation?

Responses

Yg

upper case Y lower case g

Yy

upper case Y lower case y

YY

upper case Y Y

yy

Answer 1

To determine which yellow-seeded plant could produce a green-seeded plant in the next generation, we need to look for a plant that carries a recessive allele for green seeds (y).

1. YY (homozygous dominant): This plant carries two dominant alleles for yellow seeds and cannot produce any green seeds (y).
2. Yy (heterozygous): This plant carries one dominant allele (Y) for yellow seeds and one recessive allele (y) for green seeds. It can produce green seeds when crossed with another plant that also contributes a recessive allele (y).
3. Yg: This notation is not standard for representing genotypes in this context. It likely represents a misunderstanding or typographical error.
4. yy (homozygous recessive): This plant produces green seeds, but cannot produce yellow seeds.

The correct answer is:

Yy (upper case Y lower case y)

This plant can produce offspring with green seeds if it is crossed with another plant that carries a recessive allele for yellow seeds.