Question

In: Biology

Three genotypes were observed at the S locus in a chicken population. In a sample of...

Three genotypes were observed at the S locus in a chicken population. In a sample of 1,120 chickens, the three genotypes occurred in the following numbers. (Please restrict every answer to 4 decimal places)

Genotype SS Ss ss

Number 700 330 90

a. Calculate the observed allele frequencies

b. Assuming random mating, calculate the estimated genotypic frequencies under Hardy Weinberg equilibrium

c. Use Chi-Square to determine whether or not this population is in Hardy-Weinberg Equilibrium.

Expert Solution

(a)

p^2= Sq root of 0.625 = 0.79

q^2= Sq root of 0.080=0.28

observed allele frequencies

p= 0.79

q= 0.28

(b)

Genotypic frequencies

q^2= 90/1120= 0.080 = 8%

p^2=700/1120=0.625= 62.5%

2pq= 330/1120=0.294 = 29.4 %

(c)

gladiator answered 1 year ago

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