Microevolution Flashcards
1
Q
macroevolution
A
“grand scale” changes, such as speciation (a result of microevolution and chance events)
2
Q
alpha and beta-thalassemia
A
- heterozygote form promotes malarial resistance, so the recessive gene stays in the population even though the recessive homozygote is diseased
3
Q
cheetahs
A
- 2 bottleneck events -> less genetic diversity
4
Q
Hardy-Weinberg equilibrium: equation and 5 conditions?
A
p^2 + 2pq + q^2 = 1
- large population
- random mating
- no migration
- no selection
- no mutation
5
Q
balancing selection
A
- genetic variation is maintained for longer than would be expected by random chance
- heterozygous advantage, frequency-dependent selection