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Homozygous Frequency Lab Report

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Figure 2 shows the data collected for all cell and molecular biology labs at King’s College. After all the data was collected, the results showed 2 homozygous dominant, 3 heterozygous, and 32 homozygous recessive. Lab sections D, G, E1, and E2 all experienced problems during the lab causing the data to be skewed and no results were collected.

Figure 3 shows the calculated allele frequencies, chi square analysis, and Hearty Weinberg done for the Alu data collected during lab. In order to calculate the observed frequency, the amount of a genotype (+/+, +/-, or -/-) is divided by the total amount of all genotypes collected in lab. The frequencies for each genotype are homozygous dominant (+/+) at 0.05405, heterozygous (+/-) at 0.08108, and homozygous recessive (-/-) at 0.86486. In order to calculate the allele …show more content…
For allele frequencies with in the lab, the dominant allele (+) occurs at a frequency of 0.09459 while the recessive allele (-) occurs at a frequency of 0.9054. To obtain the expected individuals in a population, the hearty Weinberg equation is used. The expected number of individual for each genotype is .33108 for homozygous dominant (+/+), 6.33784 for heterozygous (+/-), and 30.3311for homozygous recessive (-/-). The observed number is the number of each genotype collected within the lab. The 〖(O-E)〗^2 is found by subtracting the observed value of a genotype by the expected value of that genotype, then squaring the difference. Values for the genotypes calculated are 2.78529 for homozygous dominant (+/+), 11.1412 for heterozygous (+/-), and

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