题目
题目
单项选择题

Question at position 12 Based on the reading from class on Australia's endangered quolls, these small mammals have suffered declines from various threats, including cane toads, habitat loss, and predation that dramatically reduced local populations. Which of the following is a key genetic risk for these small, endangered quoll populations?Smaller populations are more likely to acquire harmful mutations.Small populations are at risk of suffering from "over selection," where natural selection starts to remove adaptive traits.Small populations are more at risk of genetic drift, which can erode genetic diversity.Increased gene flow from other regions can dilute adaptive traits.Clear my selection

选项
A.Smaller populations are more likely to acquire harmful mutations.
B.Small populations are at risk of suffering from "over selection," where natural selection starts to remove adaptive traits.
C.Small populations are more at risk of genetic drift, which can erode genetic diversity.
D.Increased gene flow from other regions can dilute adaptive traits.
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思路分析
Question restatement: The reading discusses endangered quolls in Australia and asks for the key genetic risk facing small populations, listing four possible statements. Option 1: 'Smaller populations are more likely to acquire harmful mutations.' While small populations can accumulate deleterious mutations over time due to reduced efficacy of selection (and processes like Muller's ratchet in asexuals or small diploid populations), this is not the most precise or universally r......Login to view full explanation

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