Genetic drift occurs in a population. Which of the following statements might be TRUE?
A) Genetic drift increased the population's fitness.
B) Genetic drift decreased the population's fitness.
C) The population was relatively small.
D) The population experiences a decrease in genetic variation.
E) Any of these statements can be true.

Question

Quizplus · Accepted Answer

Genetic drift is a mechanism of evolution that can lead to random changes in the population's genetic makeup. It can increase or decrease a population's fitness, often occurs more significantly in small populations, and can lead to a decrease in genetic variation. Therefore, any of the statements A, B, C, or D could be true depending on the specific circumstances of the population experiencing genetic drift.

Genetic Drift Occurs in a Population