The pumpkin has a dominant white color, a recessive yellow color, a clean line with white fruits was crossed

The pumpkin has a dominant white color, a recessive yellow color, a clean line with white fruits was crossed with a clean line with yellow fruits, which generation will turn out in F1 and F2?

Let’s designate the gene responsible for the development of the white fruit in the pumpkin as W, then the gene that determines the development of the yellow fruit in the pumpkin will be w.

The pure line characterizes homozygous plants.

Plants belonging to the pure line with white fruits will be WW. They will produce W.

Pumpkins with yellow fruits will be ww, the germ cells they produce will be w.

In F1, all pumpkins will be Ww, which outwardly will be expressed in the development of exclusively white fruits in them. Such hybrids produce sex cells of two types – w and W.

F2 offspring will be represented by the following options:

heterozygous pumpkins with white fruits (Ww) – 50%;

homozygous pumpkins with white fruit (WW) – 25%;

homozygous pumpkins with yellow fruit (ww) – 25%.