Chapter 21 Evolution Flashcards
1
Q
Define species.
A
A species is a group of individuals that can exchange DNA through interbreeding.
2
Q
Define gene pool.
A
A gene pool consists of all the alleles present in all individuals in a species.
3
Q
Define population.
A
A population is an interbreeding group of organisms of the same species living in the same geographical area.
4
Q
Define adaptation.
A
Inherited traits that were shaped by natural selection and that promote survival and reproduction.
5
Q
Define evolution.
A
The change in allele or genotype frequency in a population over time.
6
Q
Define monophyletic group.
A
A group of organisms that are all descended from the same common ancestor.
7
Q
What are the Hardy-Weinberg conditions?
A
- NO selection (no differential survival or reproduction).
- NO mutation.
- NO gene flow.
- NO genetic drift.
- Random Mating.
