Which of the following factors would be the most likely to contribute to allopatric speciation?

A. The separated population is large, and genetic drift occurs.

B. Selection pressures in the isolated population are similar to those in the ancestral population.

C. Gene flow between the two populations is extensive.

D. Different mutations begin to distinguish the gene pools of the separated populations.

Video transcript

Hi all our next question says which of the following statements about Ala Patrick speciation is true. Well, we can recall from content videos that Allah Patrick speciation occurs when there is a physical barrier between species that restricts or eliminates gene flow between the species. So an example being continental drift separating contents for putting an ocean between the species on the different continents. So with that in mind, let's evaluate our answer choices. Choice A says differences in food resources would lead to speciation while that's not correct. The speciation as a result of physical separation, not differences in food resources. Choice B says predation will eliminate some of the individuals in the population and surviving ones will evolve into new species. But we don't have any species being eliminated, they're just physically separated. So Choice B is not a correct description. Choice C. Says random mating will ensure constant gene flow. Well, that's exactly the opposite of what's happening here. Gene flow is restricted or eliminated because of the physical separation between species. So Choice C. Is not correct. So we have Joyce D. It happens when species separate into two groups due to a physical barrier hindering the gene flow. So that is the correct definition of aloe patrick speciation. So we have our answer. Come join us for the next video