which of the following is least likely to change the gene pool of a population of chipmunks?\na pesticide…

which of the following is least likely to change the gene pool of a population of chipmunks?\na pesticide poisons and kills a large number of chipmunks.\na group of chipmunks moves to a new habitat.\na number of chipmunks die due to old age.\na genetic mutation causes some of the chipmunks to have larger eyes.
Answer
Brief Explanations:
A gene pool is the set of all genes in a population. Deaths due to old - age are a normal part of life - cycle and are not likely to significantly alter the frequencies of alleles in the gene pool compared to other factors. Pesticide poisoning can cause non - random death and remove certain genotypes from the population. Migration to a new habitat can introduce or remove alleles through gene flow. Genetic mutations introduce new alleles into the gene pool.
Answer:
A number of chipmunks die due to old age.