A population of foxes in a snowy region had adapted to white winters with fur tu

Question

A population of foxes in a snowy region had adapted to white winters with fur turning white below 40C. A few individuals have a mutation preventing fur color change. “F_” individuals turn white and “ff” individuals do not. As climate changes, the winters are still cold, but less snow falls resulting in the white winter coat to be a less fit adaptation. The frequency of F = 0.5 and selection against white winter fur color is strong at s = 0.4.

What will be frequency of “p” be after one generation of selection?

Will “f” ever be fixed in the population?

Explanation / Answer

Answer:

“F_” individuals turn white and “ff” individuals do not.

The frequency of F = 0.5

and selection against white winter fur color is strong at s = 0.4.

The frequency of “p” be after one generation of selection will be p=1-q

as the frequency of the dominant allele stands as "p". and since p + q = 1.

“f” ever be fixed in the population and will not be constant as per Hardy–Weinberg equilibrium law, whic states that allele and genotype frequencies in a population will remain constant from generation to generation in the absence of other evolutionary influences. Because here the evolutionary force which is an environmenral factor i.e cold brings change in the frequency of white fur color.

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