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16-2 questions

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QuestionAnswer
Describe how Natural selection on single-gene traits can lead to changes in allele frequencies and thus to evolution. a mutation in one gene that determines body color in lizards can affect their lifespan
Describe what is meant by directional selection when individuals with traits on one side of the mean in their population survive better or reproduce more than those on the other.
Describe what impact stabilizing selection has on a population decrease of a population 's genetic variance
Describe what impact disrupting selection has on a population cause organsisms with intermediate traits to reproduce less, and will allow those organisms with extreme traits to reproduce more
Define genetic drift variation in the relative frequency of different genotypes in a small population, owing to the chance disappearance of particular genes as individuals die or do not reproduce
Describe how a founder effect can happen when a small group of individuals becomes isolated from a larger population
State the Hardy-Weinberg Principle allele and genotype frequencies in a population will remain constant from generation to generation in the absence of other evolutionary influences.
How do you know when a population hits genetic equilibrium No gene mutations may occur and therefore allele changes do not occur
Created by: 8011832
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