Question

Give an easy explanation for natural selection and genetic drift

Answer 1

Natural selection, genetic drift, and gene flow are the mechanisms that cause changes in allele frequencies over time. ... As Charles Darwin (1859) argued in On the Origin of Species, if the following conditions are met, natural selection must occur: There is variation among individuals within a population in some trait.

Answer 2

GENETIC DRIFT:
The change in the frequency of some
genes in a population which provides diversity without
any survival advantage is called a genetic drift.

NATURAL SELECTION:
The process by which organisms adapted to the environment and tend to survive and
produce more offspring