PATHOLOGY

Detailed explanation-1: -To test this prediction, Mendel allowed the F1 generation plants to self-pollinate. He was surprised by the results. Some of the F2 generation plants had white flowers. He studied hundreds of F2 generation plants, and for every three purple-flowered plants, there was an average of one white-flowered plant.

Detailed explanation-2: -The F2 generation results from self-pollination of F1 plants, and contained 75% purple flowers and 25% white flowers. This type of experiment is known as a monohybrid cross.

Detailed explanation-3: -Mendel termed the traits that always appeared in the F1 generation dominant traits because they masked, or dominated, the traits that did not show up at all. Mendel let the pea plants self-pollinate to produce the F2 generation. The traits absent from F1 were present in some plants of the F2 generation.