What is the biological role of cross-pollination?

First, let’s remember what cross-pollination is. This is a type of plant pollination in which the pollen formed by the stamens of one flower falls on the flower of another plant, the pistil of which is pollinated with this pollen. This has an important role to play. First of all, this is necessary in order for the daughter organisms to have new characters, since during cross-pollination, the genetic information of the two plants is mixed. Sometimes these properties can be beneficial, and sometimes they make the daughter organism weaker.