Week 2 Assignment

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A)

  1. Loaded up evolution module
  2. Selected two specimens (red and white)
  3. Adjusted fitness of red to 10 and everything else to 0
  4. Pressed next generation to observe population

As time goes on, the red leaves should begin to overwhelm the other leaves. It takes around 13 generations to get an all red population. The reason that white offspring still appear is because the white allele is recessive and can appear when two parents carry the recessive allele.

B)

  1. Loaded up evolution module
  2. Selected two specimens (red and white)
  3. Adjusted fitness of white to 10 and everything else to 0
  4. Pressed next generation to observe population

As time goes on, the white leaves should begin to overwhelm the other leaves. It takes around 3 generations to get an all red population. The reason that it is shorter to get a pure white population is because the red allele is dominant allele. It will be eliminated more quickly because it shows up more frequently.

C)

  1. Loaded up evolution module
  2. Selected one specimen (red)
  3. Adjusted fitness of ALL to 5
  4. Pressed next generation to observe population
  5. Adjusted fitness of of red to 10 and everything else to 0

The starting generation was in equilibrium because all the alleles were constant.

The frequency of both alleles was .5. The frequencies of RR and rr were both .25. The frequency of Rr was .5. When one generation was run the frequencies of rr was 19, RR was 23, and Rr was 58. The hardy-Weinberg principle remained constant. When the fitness was adjusted for red, the R allele frequency increased dramatically while r decreased. After 10 generations, the frequency of the R allele was 1 and every other allele had been eliminated

This project showed the basic principles of evolution and alleles.