Fill in the following tables (on page 140) using the given data. Please show all

Question

Fill in the following tables (on page 140) using the given data. Please show all the steps/expanations. Also, please correct me if I'm wrong for the tables i've already filled out.

Part2Report on Population Genetics of Fruit Flies is: is evolution occurring in our fruit fly Introduction: The general problem that interests me populations? My working hypothesis is: Evolution has occurred in the su and F1 populations. The prediction of the hypothesis is the genotype and/or allele frequencies measured in the si and F population will not equal the frequencies expected under Hardy-Weinberg My null hypothesis is: We do not expect to observe evolution in the population; therefore, the observed frequencies for each population will match the expected frequencies as calculated under Hardy-Weinberg Methods: We counted how many female flies had red eyes, pink eyes, and eyes in three fruit fly populations: so, s, and We then calculated observed genotype frequencies for each population. Next, we calculated expected genotype frequencies for the Si and Fi populations. We compared the frequencies in our observed populations to our expected populations to see if evolution occurred. Results: Record whole class data in sections A and B. A. Source Population al Time 0 (S) Genotype Frequency Number of Females Genotype Phenotype Red eyes C,C Pink eyes White eyes Total number of females scored ug9 Record the counting method to determine allele frequencies as demonstrated by your TA: f (ci) f(cici) 2 2 4195 .5802 Allele frequencies for So: ci- 58 ca- 138

Explanation / Answer

Your calculations are correct. And by performing them you have found the expected frequency for each phenotype at time S1 and F1.

You found the obseerved frequency from the observed phenotypes at S1 and F1 and then you calculated the expected frequency.

I have tabulated that information for you. Now you just have to find the difference. If there is difference in the frequency it means the frequency of the alleles have changed over time, indicating that there has been an evolution in the species.

The negative value indictes the direction of genetic drift of that particular phenotype. It indicates that the particular phenotype is seen lesser in the sucessive generation than in the previous one. Whereas positive value indicates the opposite.

f (C1C1) f (C1C2) f (C2C2) S1 expected frequency 0.34 0.48 0.18 S1 observed frequency 0.41 0.38 0.21 Difference -0.07 0.1 -0.03

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