Question

What can make a species less genetically diverse?​

Answer 1

A drop in the population's size (e. i. the bottleneck effect) and inbreeding are two possible answers to this question.

Answer 2

Small populations

In small population sizes, inbreeding, or mating between individuals with similar genetic makeup, is more likely to occur, thus perpetuating more common alleles to the point of fixation, thus decreasing genetic diversity.

Step-by-step explanation: