Microevolution Flashcards

1
Q

macroevolution

A

“grand scale” changes, such as speciation (a result of microevolution and chance events)

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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
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3
Q

cheetahs

A
  • 2 bottleneck events -> less genetic diversity
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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

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5
Q

balancing selection

A
  • genetic variation is maintained for longer than would be expected by random chance
  • heterozygous advantage, frequency-dependent selection
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