Understanding Speciation and Hybridization: Concepts and Mechanisms.

Question 1

What is speciation?

Accepted Answer

The process by which one species splits into two or more species

Question 2

What is the biological species concept?

Accepted Answer

Defines species as a group of populations whose members can interbreed and produce fertile offspring

Question 3

What are hybrids?

Accepted Answer

Offspring of two clearly distinct species that occasionally interbreed

Question 4

What is allopatric speciation?

Accepted Answer

When the initial block to gene flow comes from a geographic barrier that isolates a population

Question 5

What is reinforcement in the context of speciation?

Accepted Answer

When natural selection strengthens reproductive barriers to reduce the formation of unfit hybrids