Question

in pea plants, yellow seed color is dominant and green seed color is recessive. what will the generations look like? assume that mendels 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 yellow seeds.
the f2 generation has all green seeds.
the f2 generation has yellow and green seeds.

Explanation:

Mendel crossed true - breeding yellow - seeded (YY) and true - breeding green - seeded (yy) pea plants. The P generation consists of these two pure - breeding parents, one with yellow seeds and one with green seeds. The F1 generation is produced by the cross YY x yy and all have the genotype Yy, which results in yellow seeds due to the dominance of the yellow allele. The F2 generation is produced by self - crossing the F1 generation (Yy x Yy). Using a Punnett square, the genotypic ratio of the F2 generation is 1 YY : 2 Yy : 1 yy, resulting in a phenotypic ratio of 3 yellow : 1 green.

Answer:

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