D. inbreeding
The gene pools of small populations are reduced compared to those of larger populations primarily due to inbreeding. Inbreeding occurs when individuals within a small population mate with close relatives, leading to a decrease in genetic diversity and an increase in the prevalence of harmful genetic traits. This can result in reduced fitness and potential extinction of the population. Other factors such as bottleneck events (drastic reductions in population size) can also contribute to reduced gene pools in small populations.
Why are the gene pools of small populations reduced compared to those of larger populations?
A. lack of advantageous traits
B. lack of suitable mates
C. bottleneck events
D. inbreeding
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