|1. Print the data
table shown below.
2. Place 50 pinto beans and 50 white navy beans into the paper
3. Shake the bag. Remove two beans. These represent one rabbit's
genotype. Set the pair aside, and continue to remove 49 more pairs.
4. Arrange the beans on a flat surface in two columns representing
the two possible rabbit phenotypes, gray (genotypes GG or Gg) and white
5. Examine your columns. Remove 25 percent of the gray rabbits
and 100 percent of the white rabbits. These numbers represent an arbitrary
selection pressure on your rabbit population. If the number you calculate
is a fraction, remove a whole rabbit to make whole numbers.
6. Count the number of pinto and navy beans remaining. Record
this number in your data table.
7. Calculate the allelic frequencies by dividing the number of
beans of one type by 100. Record these data.
8. Begin the next generation by placing 100 beans into the bag.
The proportions of pinto and navy beans should be the same as the percentages
you calculated in step 7.
9. Repeat steps 3 through 8, collecting data for five generations.
10. Post your data in the table below.
11. Graph the frequencies of each allele over five generations.
Plot the frequency of the allele on the vertical axis and the number of
the generation on the horizontal axis. Use a different colored pencil for
12. Return all materials to their proper places for reuse.