Genetic differences often exist between isolated populations of the same species

Question

Genetic differences often exist between isolated populations of the same species. Select all of the mechanisms that result in genetic differences between populations. Migration between the populations results in random mating The founder effect can result in differences in allele frequencies between populations. Selection pressures vary between the populations Genetic drift can result in the fixation of alleles within small populations Incorrect One of the mechanisms you selected is incorrect, Isolated populations may be subject to different selective forces and rarely exchange genetic material with other populations

Explanation / Answer

Migration between the population results in random mating.Thr population species which are the immigrants which belong to the same area due to genetic drift they emmigrate to some other place where random mating takes place with the resident population.

Selection pressure vary between the population natural selection causes change in population dynamics like gene flow and genetic drift causes.Pressure vary between the population because species who is environmentally strong and stable will have less pressure of selection as compared to species which is not adapted to the environment will have more pressure.

Genetic drift results in fixation of allele in small population in infrequently occuring alleles.This leads to loss of rare allele and decrease in gene pool.

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