B) Data analysis questions-answer both B1) Suppose you undertake study on a cert
ID: 3166597 • Letter: B
Question
B) Data analysis questions-answer both B1) Suppose you undertake study on a certain large population of groundfinches, and survey the genotype numbers before and after a selective pressure: A,A 300 252 A,A, 180 218 A,A 120 130 Before selection After selection a) What ar the atle requencis before andafher slection? b) What are the fitnesses of each genotype? c) If the observed fitness estimates are correct and constant, what will the genetic composition of th population be after several generations (ie. at equilibrium)?Explanation / Answer
A) Before selection,
Allele frequency of A1 = (2*300 + 180)/ 2*600 = 0.65
Allele frequency of A2 = (2*120 + 180)/ 2*600 = 0.35
After selection,
Allele frequency of A1 = (2*252 + 218)/ 2*600 = 0.60
Allele frequency of A2 = (2*130 + 218)/ 2*600 = 0.40
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