Asmall group of individuals leave a larger population and colonize a new area that is physically separated from the original population. due either to chance or genetic drift, the genetic composition of the new colony differs from the larger population.

Hello. This question is incomplete. The full question is:

"A small group of individuals leave a larger population and colonize a new area that is physically separated from the original population. Due either to chance or genetic drift, the genetic composition of the new colony differs from the larger population. This is an example of ...

A) gene flow - B) a founder event - C) geographic isolation - D) allopatric speciation "

B) a founder event

Explanation:

The founding effect occurs when some individuals from a given population isolate themselves and establish a new population in another location, relatively distant from the original. This new population presents only a small portion of the genetic variety of the original population, and, because it has a small number of individuals, it provides the action of genetic drift, a process in which the frequencies of genes fluctuate at random, regardless of whether they are linked whether or not to adapt.

The populations formed by the founder effect are small and, therefore, are more subject to extinction processes than larger populations.

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