Question at position 28 In accordance with the "Out-of-Africa" hypothesis, we would expect that _________ populations would have greater genetic diversity.youngeroldersmallerwiserlargerClear my selection

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BlackTom AI · Accepted Answer

Let's break down the question and options in detail.
Option 1: 'younger' — If a population is younger in origin, we would generally expect less time for accumulating genetic diversity through mutations and recombination, and it would also be more susceptible to founder effects if it arose from a smaller founding group. This makes this option unlikely in the Out-of-Africa framework where diversity is greatest in the oldest, ancestral populations.
Option 2: 'older' — According to the Out-of-Africa hypothesis, modern humans originated in Africa and then migrated out to other regions. The ancestral African populations have had more time to accumulate genetic variation, and non-African populations typically show reduced diversity due to serial founder effects during migrations. Therefore, older populations are expected to harbor greater genetic diversity.
Option 3: 'smaller' — Smaller populations tend to lose genetic diversity more quickly due to stronger genetic drift and bottlenecks. This makes smaller populations less diverse on average, not more, so this option conflicts with the Out-of-Africa expectation.
Option 4: 'wiser' — 'Wiser' is a qualitative and non-genetic descriptor; genetic diversity is about the variety of genetic variants, not a measure of wisdom or knowledge. This option misinterprets what genetic diversity refers to and is not relevant to the question.
Option 5: 'larger' — Population size can influence the retention of diversity, but the Out-of-Africa pattern specifically highlights time since origin and founder effects rather than just absolute population size. Larger populations outside Africa do not automatically imply greater genetic diversity than older African populations, so this option is not aligned with the hypothesis.
In summary, the option that aligns with the Out-of-Africa expectation is the one describing the older populations as having greater genetic diversity, while the other options present conceptual or factual mismatches with how genetic diversity arises and is distributed across human populations.

Question at position 28 In accordance with the "Out-of-Africa" hypothesis, we would expect that _________ populations would have greater genetic diversity.youngeroldersmallerwiserlargerClear my selection

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