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When only a few individuals survive unfavorable times, thereby losing the majority of genotypes in the next generation, is called\?

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Answer;

A bottleneck effect


Step-by-step explanation;

When only a few individuals survive unfavorable times, thereby losing the majority of genotypes in the next generation, it is called a bottleneck effect.

It occurs when there is a disaster of some sort that reduces a population to a small handful, which rarely represents the actual genetic makeup of the initial population.

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