Which factor or process does the Dobzhansky-Muller model of speciation necessarily require?
A) Natural selection
B) Reinforcement
C) Interaction between alleles at different loci
D) Chromosomal rearrangements, particularly centric fusions
E) Temporal isolation

Question

Quizplus · Accepted Answer

The Dobzhansky-Muller model of speciation requires interaction between alleles at different loci. This interaction can result in genetic incompatibilities that prevent gene flow between populations, leading to speciation. Natural selection (A) can play a role in shaping allele frequencies, but it is not necessarily required for the Dobzhansky-Muller model. Reinforcement (B) is a process that can occur after speciation has already taken place, and is not a necessary factor in the initial speciation event. Chromosomal rearrangements (D) can also contribute to speciation by creating genetic barriers, but they are not always required for the Dobzhansky-Muller model. Temporal isolation (E) is a type of prezygotic barrier that can prevent mating between populations, but it is not a factor in the Dobzhansky-Muller model.

Which Factor or Process Does the Dobzhansky-Muller Model of Speciation