Natural selection does not always result in an increase in genetic diversity. select the best answer from the choices provided t f

True

Explanation:

In a natural selection, the frequency of an allele not necessarily increases always. The frequency of an allele decreases sometimes in natural selection. There are different modes of natural selection –  

a)Mutation – When a new allele is created

b)Random mating

c)Random fertilization  

d)Recombination  

A common example of natural selection in which the genetic variation decreases is known as founder effect in which the population starts ascending from a small population.

the answer for this question would be d. glaciers