Which statement about the Dobzhansky-Muller model of speciation is true?
A) Empirical examples support the model.
B) It focuses on a single gene.
C) It includes a phase in which some individuals are reproductively incompatible with other individuals in the same population.
D) It cannot be applied to chromosomal rearrangements.
E) It is an application of the morphological species concept.

Question

Quizplus · Accepted Answer

Empirical examples, such as those observed in fruit flies and yeast, support the Dobzhansky-Muller model of speciation.

Answer: C
 The Dobzhansky-Muller model includes a phase in which some individuals become reproductively incompatible with others in the same population due to genetic divergence.

Answer: D
 The Dobzhansky-Muller model can be applied to chromosomal rearrangements, as long as they lead to genetic incompatibilities between populations.

Therefore, the correct answer is A and C.

Which Statement About the Dobzhansky-Muller Model of Speciation Is True