题目
题目

BIOL 1009 (001-006/050-055) Final Exam

单项选择题

The process of genetic drift describes

选项
A.random fluctuations in the frequency of alleles especially in small populations.
B.adaptive changes in allele frequencies.
C.selective differences among genotypes in the population.
D.random fluctuation in population size.
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标准答案
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思路分析
To understand the concept, we must evaluate what genetic drift entails and how it differs from other evolutionary forces. Option 1: 'random fluctuations in the frequency of alleles especially in small populations.' This is precisely what genetic drift describes: random changes ......Login to view full explanation

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