OBJECTIVE LIFE SCIENCE
EVOLUTION
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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founders effect
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bottleneck
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genetic drift
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adaptation
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Detailed explanation-1: -A founder effect, as related to genetics, refers to the reduction in genomic variability that occurs when a small group of individuals becomes separated from a larger population.
Detailed explanation-2: -A bottleneck effect is the term used to describe the loss of genetic variation that occurs after outside forces destroy most of a population. The few individuals left to reproduce pass their traits on to all of their offspring, which then may thrive without the competition of a large population.
Detailed explanation-3: -The founder effect can be due to geographic isolation, when a small population of individuals migrates to a new area. In this case, the distance or obstacles between the two populations make interbreeding impossible, and the new populations become genetically distinct over time.
Detailed explanation-4: -Genetic drift can have major effects when a population is sharply reduced in size by a natural disaster (bottleneck effect) or when a small group splits off from the main population to found a colony (founder effect).