Reproductive isolation as a result of Dobzhansky-Muller incompatibility is caused by Group of answer choices the inability of organisms from different lineages to fit their genitalia together the failure of individuals of different lineages to recognize one another as potential mates. the inability of two or more loci from different lineages to function well together the lower fitness of hybrids as a result of underdominance reduced fertility because of chromosomal mismatch and reorganization
Added by Alec H.
Step 1
** Show more…
Show all steps
Your feedback will help us improve your experience
Sri K and 98 other Biology educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
One genetic mechanism for the evolution of postmating reproductive isolation is Dobzhansky-Muller Incompatibility. They imagined an ancestral population with genotype A1A1B1B1 that splits into two geographically isolated populations. In population 1 a mutation A2 fixes at the A locus. In population 2 a mutation B2 fixes at the B locus. A1A2B1B1 A2A2B1B1 Population 1 A1A1B1B1 A1A1B1B2 A1A1B2B2 Population 2 Which of the following patterns of genotypic fitnesses would constitute an example of a Dobzhansky-Muller incompatibility? A1A1B1B1 A1A2B1B1 A2A2B1B1 A1A1B1B2 A1A1B2B2 A1A2B1B2 Fitness
Sri K.
Two species of frogs belonging to the same genus occasionally mate, but the offspring fail to develop and hatch. What is the mechanism for keeping the two frog species separate? A) the postzygotic barrier called reduced hybrid viability B) the postzygotic barrier called hybrid breakdown C) the prezygotic barrier called reduced hybrid fertility D) gametic isolation E) none of the alternatives are correct
Madhur L.
Recommended Textbooks
Biology for AP Courses
Objective Biology for NEET
Introduction to General, Organic and Biochemistry
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD