Answer to Question #197531 in Genetics for Sam

Question

The processes that lead to variation have been discussed. However, try also to criticise these processes a bit, for example are there any disadvantages to theses processes and their contribution to variation

Answer 1

Variation causes lose of linkages of chromosomes, which leads to mutations; most mutations are deleterious. Mutations causes drug resistant by bacteria/fungi/protozoa diseases. It also makes insects /pests to be resistant to insecticides/pesticides.