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15 Cards in this Set
- Front
- Back
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What is evolution?
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Evolution is the change in the frequency of alleles (or genetic structure) in a population over generations.
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What is an allele?
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An allele is an alternative form of a gene.
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What are some examples of changes in allele frequency?
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Mosquitos are vectors of disease that transmit some pathogens from host to host.
Viruses are more resistant to anti-viral medicines. |
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Malaria management is complicated by the evolution of what?
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Malaria management is complicated by the evolution of--
DDT resistance in mosquito populations Quinine resistance in Plasmodium Falciparum populations |
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How quickly can an HIV population in an infected individual evolve resistance to an AIDS-related drug?
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20 days (3 weeks)
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Where does evolution constantly occur?
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Evolution constantly occurs in agro-ecosystems.
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What are the New World's most significant contributions to global agriculture?
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Maize and potatoes
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How did Darwin define evolution?
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Darwin defined evolution as descent with modification.
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Which biological molecule gives life the intrinsic ability to change over generations?
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DNA
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What are some examples of rapid evolution?
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Mosquitos, HIV populations, bacteria resistant to antibiotics
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What is an example of gradual evolution?
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the growth of horses in size
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What technique was used by our ancestors to transform wolves into dogs?
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selective breeding, in less than 100 years
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What is selective breeding?
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Selective breeding is a method used by our ancestors to transform wild animals into livestock, companions, and transportation.
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Which specific traits did our ancestors select in order to domesticate wild animals?
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Food sources
Breasts of burden and transportation Companions |
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What did Meso-Americans transform the weed Teosinte into?
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Maize (corn)
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