On the figure above sketch the results of the

This preview shows page 4 - 6 out of 16 pages.

(9) On the figure above, sketch the results of the simulation. Do your predictions match the results? Freq A 1 1 Time (generations)
(10)Why does recessiveness alone prevent the loss of an allele from a population?
(11)How would you increase the strength of selection against allele A 1 ? Try simulating this situation. How does the strength of selection affect the rate at which the frequency of allele A 1 decreases?
Page of 4 16
(12)How could you change the genotype fitness values to make allele A 1 a beneficial recessive allele? Try simulating this situation. Summarize the differences (at least 2) in evolutionary trajectory (i.e., rate of change over time and final endpoint) between a situation where allele A 1 is a beneficial recessive and where allele A 1 is a deleterious recessive.
B. MUTATION Consider a simple case of mutation alone. Things would happen extremely slowly if we used realistic mutation rates, so let’s pretend our study population is at Love Canal, Chernobyl, or Fukushima. Set Mutation Rate A 1 =>A 2 = 0.1, A 2 =>A 1 = 0.01, Initial Frequency of allele A 1 = 0, Fitness A 1 A 1 =A 1 A 2 =A 2 A 2 =1. Leave all other parameters the same as in the previous simulation. (13)Is mutation from allele A 1 to allele A 2 deleterious, beneficial or neutral? Is mutation from allele A 2 to allele A 1 deleterious, beneficial or neutral?

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture