BIOL 1200 Midterm: Exam 2 Study Guide Part 1
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Give an example of each: balancing selection: maintains two or more phenotypic forms in a population, heterozygote advantage: ex: human leukocyte antigens (hla), sickle cell. Anemia: frequency dependent selection: ex: african scale-eating fish. 21. 15 make connections in your text: if you are homozygous for the sickle cell allele you have issues with the blood cells. If you are heterozygous, you have protection from malaria and your blood isn"t affected by sickling. Who first recognized/proposed it: sexual selection: selection favoring traits that increase an individual"s ability to obtain or preferentially choose mates, charles darwin. Does it represent intra- or intersexual selection: when the female performs sexual selection. Why are males often brightly colored: to better attract a female/intersexual selection. Is there empirical evidence for the good genes hypothesis: gray tree frog experiments involving length of call; females prefer longer calls, longer calls mean healthier/better genes.
