Chapter 14: Evolution of Populations Flashcards
1
Q
Microevolution
A
When relative frequencies of alleles in population change over time.
2
Q
Population
A
Group of individuals of same species that live in same area & interbreed.
Share gene pool.
3
Q
Mutation
A
Change in nucleotide sequence of DNA.
4
Q
When Population is Equal
A
Population is very large.
No gene flow between populations.
No mutation.
Random mating.
No natural selection.
5
Q
Genetic Drift
A
Chance events can cause allele frequencies to fluctuate unpredictably from one generation to the next.
The larger the sample size more predictable the results.
6
Q
Hardy-Weinberg Principle
A
Genetic variation is necessary for population to evolve (no guarantee).
Shuffling of alleles, no evolution is possible.
7
Q
Mutation Equation
A
Used instead of punnet square.
p2 + 2pq +q2 = 1.
p + q = 1.
