When Mendel crossed yellow-seeded and green-seeded pea plants, all the offspring were yellow seeded. When he took these F1 yellow-seeded plants and crossed them to green-seeded plants, what genotypic ratio was expected?
A) 1:2:1
B) 3:1
C) 9:3:3:1
D) 1:1
E) 1:1:1:1

Question

Quizplus · Accepted Answer

In this cross, the F1 yellow-seeded plants (heterozygous, Yy) are crossed with green-seeded plants (homozygous recessive, yy). This results in a 1:1 genotypic ratio of Yy (yellow-seeded) to yy (green-seeded) offspring.

When Mendel Crossed Yellow-Seeded and Green-Seeded Pea Plants, All the Offspring