20. Genetic variation leads to genetic diversity in populations and is the raw materialfor evolution. Biological systems have multiple processes, such as reproduction, thataffect genetic variation. They are evolutionarily conserved and shared by variousorganisms. Which of the following statements best represents the connection betweenreproduction and evolution?
(A) Plants that use sexual reproduction are rare since this type of reproduction in plantsdoes not contribute to genetic diversity.
(B) In order to increase genetic diversity for evolution in sexually reproducingorganisms, mutations must occur in the zygote after fertilization.
(C) Since prokaryotic organisms reproduce asexually, there is no mechanism for themto add genetic diversity for evolution.
(D) Sexual reproduction increases genetic variation because random mutations can beshuffled between organisms.