Describe dobzhansky-muller incompatibility

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1. You're a laboratory pathologist studying a strain of asexual bacteria, and your research team is unsure of which species concept to use (biological, morphological, phylogenetic). Which definition do YOU think you should use? There is no wrong answer, but you must properly defend your choice: what criteria can you use to decide which concept to go with?

2. You get multiple DNA samples of turtles from a single population in a river and want to determine whether there's more than one species present. What are 2 specific things in the DNA that you can look for? Hint: it's more than just "differences"

3. What's the difference between divergence, chronospecies, and peripatry? Don't just DEFINE them, state how they DIFFER

4. A drought causes a lake to shrink and become several smaller ponds, effectively splitting a population of fish. Is this an example of vicariance or dispersal? How do you know?

5. Why is sympatric speciation more likely to happen from a monogenic trait than a quantitative trait?

6. How do you distinguish allopatric, parapatric, and peripatric, speciation? Don't just DEFINE them, state how they DIFFER

7. BRIEFLY describe 3 prezygotic barriers that can lead to SYMPATRIC speciation

8. In your own words, describe Dobzhansky-Muller incompatibility

9. What are 3 outcomes of hybrid zones and what causes each of these to happen?

10. Can gene flow directly cause speciation? Use the term "introgression" in your answer

11. How are speciation traits connected to speciation genes? What do they have in common and what is their relationship?

12. If there are several potential reproductive barriers isolating a species, how can you determine which ones are contributing to speciation?

Reference no: EM133670074

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