Anthropology Ch. 4

30 December 2022
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15 test answers

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question
Evolution can be defined as:
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a change in the genetic makeup (allele frequency) of a population from one generation to the next.
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The only possible source of new, unique, genetic material comes from what?
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mutations
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According to Charles Darwin, natural selection operates at the level of:
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individuals
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Which of the evolutionary forces is most likely to decrease variation between two populations?
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gene flow
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Genetic drift is the force of evolution that is most powerful when acting on very large populations.
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False
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Reproductive isolation is key to the development of individual species.
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True
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The inability to taste PTC indicates a homozygous recessive genotype.
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True
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Malaria is caused by:
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bites from infected mosquitoes.
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Hardy-Weinberg equilibrium assumes:
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no gene flow, mutation, genetic drift, or natural selection.
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"Fitness," in an evolutionary sense, refers to an individual's:
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reproductive success.
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The substitution of one DNA base for another due to a mistake during replication is called a:
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point mutation.
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The ABO and MN blood type frequencies of the Dunkers differ significantly from those of current American and German populations due to:
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genetic drift.
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Mutations to which cells are most likely to have significant evolutionary consequences?
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sex cells (gametes)
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The best-documented case of industrial melanism involves:
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peppered moths.
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The mutation known as trisomy 21, in which an extra copy of chromosome 21 is present, is more commonly known as:
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Down syndrome.