What is the erosion of genetic variation when a new population is established by a small number of colonists called?
Question and options
What is the erosion of genetic variation when a new population is established by a small number of colonists called?
- Gene flow
- Adaptive radiation
- Iterative evolution
- Founder effect
Answer and explanation
Correct answer: D - Founder effect
The founder effect is loss of genetic variation when a new population is established by a few colonists. Gene flow adds variation by migration between populations, adaptive radiation is diversification into many forms, and iterative evolution is repeated evolution of similar forms.
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