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Hardy-Weinberg equilibrium assumes


A) strong selection pressure on the trait(s) being studied.
B) a significant mutation rate from generation to generation.
C) gene flow that is equal both into and out of the population.
D) no gene flow, mutation, genetic drift, or natural selection.

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Malaria is caused by


A) bites from infected mosquitoes.
B) a genetic mutation.
C) drinking bad water.
D) eating spoiled food.

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Spontaneous mutation is the result of


A) unknown causes.
B) X-rays.
C) toxic chemicals.
D) UV radiation.

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Mutation


A) works most effectively on small populations.
B) is the only source of new alleles.
C) is one of many sources of new alleles.
D) works to decrease variation between populations.

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Which of the evolutionary forces is most likely to decrease variation between populations?


A) gene flow
B) founder effect
C) mutation
D) natural selection

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Aborigines are an endogamous society.This means that marriage and reproduction take place within the group leading to


A) increased genetic diversity through genetic drift.
B) migration without gene flow.
C) more genetic diversity than would be observed in an exogamous society.
D) decreased genetic diversity due to a lack of admixture.

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When geneticists talk about the gene pool, they refer specifically to variation at a genetic


A) chromosome.
B) nucleus.
C) address.
D) locus.

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Why is a frameshift mutation far more likely to lead to a defective protein compared with a point mutation?

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The potential effects of a point mutatio...

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Which of the following is key to the development of individual species?


A) Microevolution
B) Gene flow
C) Reproductive isolation
D) Equilibrium

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In a classroom taste-test for PTC, the genotype frequency was determined to be P = 0.35 and Q = 0.65.After applying the Hardy-Weinberg equation, which of the following was found to be the percentage of genotypes?


A) p2=0.12; 2pq=0.46; q2=0.42
B) p2=0.35; 2pq=0.00; q2=0.65
C) p2=0.12; 2pq=0.65; q2=0.23
D) None of the above

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The type of selection that favored progressively larger brain size in human evolution is


A) natural selection.
B) directional selection.
C) stabilizing selection.
D) disruptive selection.

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