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6 Cards in this Set
- Front
- Back
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In genetic terms, what is evolution? |
change in relative frequency |
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What are the 2 main sources of genetic variations? |
mutations and genetic shuffling from sexual reproduction |
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What is directional selection? |
When individuals at one end of the curve have higher fitness. (ex: black moths in soot survive) |
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What is stabalizing selection? |
When the center of the curve grows narrow. (ex: gray moths survive) |
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What is disruptive selection? |
When both ends of the curve survive (ex: white and balck moths survive) |
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What is a genetic drift? |
a random change in allele frequency |
