What is the significance of knowledge about microevolutionary processes for humans?

Microevolution is small changes within a population. Knowledge about these changes, the reasons for their occurrence and the nature of their action can help a person in many issues. These are studies of the evolution of living things. Also, thanks to the knowledge of the reasons for the changes, we can create certain conditions for increasing the productivity of breeding. Then, organisms are more likely to have and fix certain changes that can be useful to us. Therefore, scientists are studying the microevolution of living organisms.