In a population of 10,000 mussels, how many individuals would be heterozygous and contain the recessive gene that might potentially rid the great lakes of this invasive species?

A)198

Explanation:

Solution:

frequency of aa = q2 = 1/10,000 = 0.0001, q = 0.01

number of aa = 0.0001 x 10,000 = 1 individual

p + q = 1, p = 0.99

frequency of AA = p2 = 0.9801

number of AA = 0.9801 x 10,000 = 9,801 individuals

Aa = 2pq = 2 x 0.9801 x 0.01 = 0.0198 or 198 individuals

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