Asmall group of yellow violet plants become isolated from a larger yellow violet plant population. this results in a change in allele distribution within the isolated group. which mechanism is responsible for the change

Genetic drift

Explanation:

Genetic drift is the mechanism that results in a change in the distribution of alleles within an isolated group of organisms.In this case, a group of yellow violet plants became isolated from a large violet plant population causing a change in allele distribution. This is a result of genetic drift which is a random process that may cause allele frequency change over a short period. The process may, therefore, result in the loss of genetic variation due to the alteration of allele frequency in a population.

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D. peatlands,grassland,swamps