SSC
BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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In which populations does genetic drift most often occur?
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in small populations
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in large populations
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in marine populations
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in terrestrial populations
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Explanation:
Detailed explanation-1: -Small populations tend to lose genetic diversity more quickly than large populations due to stochastic sampling error (i.e., genetic drift). This is because some versions of a gene can be lost due to random chance, and this is more likely to occur when populations are small.
Detailed explanation-2: -Small populations are more likely to experience genetic drift, as they are more likely than large populations to experience significant fluctuations in allele frequencies due to chance.
Detailed explanation-3: -Answer and Explanation: The most common event that results from genetic drift is the population bottleneck which causes drastic changes in allele frequency in a very short period due to any random event.
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