Phctc Section 3: Genetics and Evolutiorn Evolution for Ecology K16/17> These que

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Phctc Section 3: Genetics and Evolutiorn Evolution for Ecology K16/17> These questions will be graded by your instructor. Your score will be available on the Home screen when your instructor publishes scores for this module. EzPhot WARNING: To deter cheating, different students get different versions of some graded questions. Thank you for respecting your school's honor codel Word 2 Q3.11. A dominant allele will always increase in frequency over time. e True intSh e False Submit Q3.12. When a gene has two alleles, the allele frequencies in a population automatically move toward an equilibrium of 50:50, then stay there usine True .False Submit ativit Q3.13. All else being equal, alleles associated with high reproductive success increase in frequency more so than other alleles True False Submit earch

Explanation / Answer

Answer:

1) A dominant allele will always increase in frequency over time - FALSE (Explanation: allele frequencies will not change from one generation to next generation if the population is in Hardy Weinberg equilibrium)

2) When a gene has two alleles, the allele frequencies in a population automatically move toward an equilibrium of 50:50, then stay there - FALSE (Explanation: genetic drift can cause random changes in allele frequencies, similarly natural selection, migration, mutation all can change allele frequencies.)

3)  All else being equal, alleles associated with higher reproductive success increase in frequency more so than other alleles - TRUE (Explanation: An allele with higher fitness or higher reproductive success will be more likely to be represented in future generations within a population and results in increase in the frequency of allele)

4) Flower color in sand blossoms (Linanthus parryae) is controlled largely by a single gene with two alleles. Individuals with genotype BB or Bb are blue; individuals with genotype bb are white. Sand blossoms grow in patches in the desert. Some patches have only blue individuals, some have only white, and some are mixed. Based only on this information, which explanation below is plausible? - All of the above explanations are plausible - Correct Option

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