Question

In a species of insect, wing length is determined by a single gene, for which there are only two alleles. in a population of 150 insects, the frequency of the recessive trait is 0.05, after four generations, the recessive allele frequency is 0.31in a population of 125 insects. which of the following does this most likely suggest about the recessive allele?
a. after about 20 generations, the recessive allele will be the only one that exist for the gene.
b. it is not advantageous to the insects because it results in an overall decrease in the population
c. it results in a phenotype that makes the insect better fit to survive in its environment
d. because it is still not a dominant allele, it does not have a significant impact on the survival of the species.

Answer 1

Answer:

Option C, it results in a phenotype that makes the insect better fit to survive in its environment

Explanation:

Recessive alleles are not predominantly found in any population but with sexual reproduction these recessive alleles starts appearing in the given population with high frequency.

As the time progresses, the reproduction causes an increment in the frequency of recessive allele. However, it is governed by the Darwin's theory of the survival of the fittest. If the frequency of recessive allele is increasing , then it is for sure that the local environment might be supporting the survival of organism with recessive trait more efficiently than the organisms with other allele pairs.

Hence, option C is correct

Answer 2

I believe the answer is c. because of Darwin's theory of evolution..