Allozyme genetics exercise
[Data_Source]: Allozyme_genotypes.txt; The data file consists of diploid genotypes for 20 fruit flies at 5 allozyme loci (EST1 to EST5) sampled from many populations. Please find the population assigned to you (Data_Assignment.txt). Each distinct allele at a locus is given a unique number (e.g. 12 = heterozygous individual with allele 1 and allele 2). There is a maximum of 3 alleles per locus.
Analyse the data to estimate the parameters below
1. Allele frequencies (p1,p2,p3)
2. Number of Alleles/Locus, a
3. Observed Heterozygosity / locus Hobs
4. Expected Heterozygosity / locus Hexp
5. Proportionate reduction in heterozygosity due to inbreeding, Fis
6. x2 for HWE test
7. df for HWE test
8. p value for HWE test
Provide me with a completed table like below; report 2 decimal places for all estimates, but keep 3 decimal places while doing the calculations
Is your population inbreeding: Yes / No
Back up you answer with evidence (2 to 3 lines):
Sequence analysis exercise:
You’ve sequenced 1000 bp of your favourite gene from 5 haploid individuals. The dataset specifies all polymorphic positions in the sequences (their location does not matter here). Estimate the following parameters;
1. Proportion of Segregating Sites, S [3 decimal places]
2. Number of mismatches at each segregating site, presented in the same order as in the dataset and separated by commons [eg: 3,4,4,3,…]
3. Nucleotide diversity, π [4 decimal places]
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