Which of the following does not tend to promote speciation?
A)the founder effect
B)gene flow
C)natural selection
D)polyploidy
E)disruptive selection

Question

Quizplus · Accepted Answer

Gene flow involves the movement of genetic material from one population to another and tends to increase genetic similarity between populations, thereby hindering the development of genetic differences that could lead to speciation. The other choices (A, C, D, and E) tend to promote speciation in various ways. The founder effect can contribute to speciation by reducing genetic diversity in a newly established population, creating a genetic distinctiveness that could lead to further divergence. Natural selection can drive the evolution of new traits that increase the fitness of individuals in a particular environment, leading to the formation of new species. Polyploidy, a condition in which an organism has more than two sets of chromosomes, can lead to reproductive isolation and the formation of new species in plants. Disruptive selection can drive divergence in a population by favoring individuals at opposite ends of a trait spectrum, potentially leading to the formation of two separate populations that cannot interbreed.

Which of the Following Does Not Tend to Promote Speciation