In beans, the black color of the seeds (A) dominates over the white color (a).

In beans, the black color of the seeds (A) dominates over the white color (a). Determine the color of seeds in the offspring at the following crossing: Aa X Aa.

Beans with genotype Aa will produce black seeds. Such a plant produces germ cells of two types: a and A.

When crossing such plants, the offspring will be represented by the following options:

homozygous black seed beans (AA) – 25%;

homozygous beans with white seeds (aa) – 25%;

heterozygous black seed beans (Aa) – 50%.