Which of the following factors would NOT contribute to allopatric speciation? The isolated population is exposed to different selection pressures than the ancestral population Different mutations begin to manifest in the gene pools of the separated populations The separated population is small, and genetic drift occurs. There is high gene flow between the two populations A population becomes geographically isolated from the parent population. Solution Ans: There is high gene flow between the tow population is not contribute to allopatric speciation. In allopatric speciation, a population splits into two geographically isolated populations due to formation of a barrier between portions of a population.The isolated populations then experience differentiating genotypic and phenotypic divergence as a result of different selective pressures in their differing environments. Additionally, genetic drift will occur differently, eventually differentiating the population’s genotypes and phenotypes. The separated populations will also experience different mutations that may persist differently in their respective environments. The each population have evolved differently to an extent that they remain isolated because changes are too great to enable genetic mixing through sexual reproduction. Allopatric speciation is not necessarily precluded if some individuals from one group cross the barrier and mate with members of the other group. In other words, allopatric speciation can occur if gene flow between groups is greatly reduced, but not entirely eliminated..

1. Which of the following factors would NOT contribute to allopatric speciation? The isolated
population is exposed to different selection pressures than the ancestral population Different
mutations begin to manifest in the gene pools of the separated populations The separated
population is small, and genetic drift occurs. There is high gene flow between the two
populations A population becomes geographically isolated from the parent population.
Solution
Ans: There is high gene flow between the tow population is not contribute to allopatric
speciation.
In allopatric speciation, a population splits into two geographically isolated populations due to
formation of a barrier between portions of a population.The isolated populations then experience
differentiating genotypic and phenotypic divergence as a result of different selective pressures in
their differing environments. Additionally, genetic drift will occur differently, eventually
differentiating the population’s genotypes and phenotypes. The separated populations will also
experience different mutations that may persist differently in their respective environments. The
each population have evolved differently to an extent that they remain isolated because changes
are too great to enable genetic mixing through sexual reproduction. Allopatric speciation is not
necessarily precluded if some individuals from one group cross the barrier and mate with
members of the other group. In other words, allopatric speciation can occur if gene flow between
groups is greatly reduced, but not entirely eliminated.