Biology (MindTap Course List)
Biology (MindTap Course List)
11th Edition
ISBN: 9781337392938
Author: Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher: Cengage Learning
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Chapter 19, Problem 6TYU

The continued presence of the allele that causes sickle cell anemia in areas where falciparum malaria is prevalent demonstrates which of the following phenomena? (a) inbreeding depression (b) frequency-dependent selection (c) heterozygote advantage (d) genetic drift (e) a genetic bottleneck

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The MN blood group is of interest to population geneticists because (a) people with genotype MN cannot receive blood transfusions from either MM or NN people (b) the MM, MN, and NN genotype frequencies can be observed directly and compared with calculated expected frequencies (c) the M allele is dominant to the N allele (d) people with the MN genotype exhibit frequency-dependent selection (e) people with the MN genotype exhibit heterozygote advantage
Which of the following are INCORRECT about inbreeding?   select all that apply a.) It speeds evolutionary change b.)It causes evolution c.)Allele frequency changes d.)Genotype frequency does not change e.)Heterozygosity decreases
For each of the following scenarios, decide whether a change in allele frequencies is more likely to be caused by genetic drift or by selection: a) A small group of spiders move to a new forest Select ] b) Only insects that are resistant to a pesticide survive in a farmer's field [ Select ] c) Bark beetles kill trees with weakened immune systems [ Select ] d) A den of foxes is destroyed when the land is cleared for agriculture [ Select ] e) The slowest pigeons do not survive attacks by peregrine falcons I Select | f) Only a few lizards are left on an meadow after a severe storm Select ]

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Biology (MindTap Course List)

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Mendelian Genetics and Punnett Squares; Author: Professor Dave Explains;https://www.youtube.com/watch?v=3f_eisNPpnc;License: Standard YouTube License, CC-BY
The Evolution of Populations: Natural Selection, Genetic Drift, and Gene Flow; Author: Professor Dave Explains;https://www.youtube.com/watch?v=SRWXEMlI0_U;License: Standard YouTube License, CC-BY