Populations do not necessarily consist of the individuals be...

Question

Populations do not necessarily consist of the individuals best adapted to survive and reproduce. Theoretically, the most fit individuals in a population will survive longest and reproduce the most, however chance plays a role in who survives, Reproduces, and whose offsprings survive to reproduce as well. In a population, where the allele frequency shifts by random chance, the mechanism of evolution at work is _________.

The correct answer is: B.Genetic drift.

Explanation:

In this scenario, the shift in allele frequency occurs due to random chance rather than selective pressures, which describes genetic drift. Genetic drift is the random fluctuation of allele frequencies in a population, especially in small populations, and it can lead to changes in the genetic makeup of a population without regard to the fitness or adaptability of the individuals.

The other options are incorrect for the following reasons:

A.Natural selection: Natural selection involves indivi...

Biology

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