Question

In pea plants, yellow seed color is dominant and green seed color is recessive. What will the generations look like? Assume that Mendel’s method of crossing two true breeding parents with opposite traits is followed. Check all that apply.

The P generation has all yellow seeds.

The P generation has all green seeds.

The P generation has yellow and green seeds.

The F1 generation has yellow and green seeds.

The F1 generation has all yellow seeds.

The F2 generation has all green seeds.

The F2 generation has yellow and green seeds.

Answer 1

Correct choices:

- The P generation has yellow and green seeds.
- The F1 generation has all yellow seeds.
- The F2 generation has yellow and green seeds.

Explanation: Cross true-breeding yellow (YY) × true-breeding green (yy). P includes both parental types (yellow and green). F1 are all Yy and show the dominant yellow phenotype. F1 self-cross (Yy × Yy) yields F2 with a 3:1 phenotypic ratio (yellow:green).