What is the danger in genetic uniformity?
A) In the event of dramatic environmental changes, genetic variation would be needed to allow for adaptation to the new environment.
B) If everyone was genetically identical, there would be no division of labor, ability, or interests.
C) Genetic uniformity would lead to new infectious disease.
D) Once people become relatively uniform, there would be no source of new genetic material.

Question

Quizplus · Accepted Answer

Genetic uniformity reduces the amount of genetic variation within a population, which makes it less likely for a population to adapt to changing environmental conditions. If there were to be a dramatic environmental change, there would be no genetic variation available to allow for adaptation to the new environment, thereby increasing the risk of extinction.

Answer: D
 Once people become relatively uniform, there would be no source of new genetic material, which could limit both the adaptability of the population and evolution itself. It is crucial for a population to maintain genetic variation so that it can adapt to changing conditions and continue to evolve.

What Is the Danger in Genetic Uniformity