Hardy-Weinberg genotype frequencies are calculated as expectations under the ass

Question

Hardy-Weinberg genotype frequencies are calculated as expectations
under the assumptions required for a formal mathematical proof of the
H-W equilibrium law. Violations of the assumptions are detected by
comparing expected and observed genotype frequencies.
A1A1 A1A2 A2A2
0.25 0.50 0.25 generation 0
0.26 0.51 0.24 generation 1
0.24 0.48 0.28 generation 2
0.25 0.50 0.25 generation 3
0.27 0.50 0.23 generation 4
The genotype frequencies over five generations recorded above do not show perfect concordance between expected and observed values. The departures from expectation are, most likely, the result of
a. mutation b. drift c. selection d. nonrandom mating e. phlebotomy


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Explanation / Answer

Hardy-Weinberg genotype frequencies are calculated as expectations
under the assumptions required for a formal mathematical proof of the
H-W equilibrium law. Violations of the assumptions are detected by
comparing expected and observed genotype frequencies.
A1A1 A1A2 A2A2
0.25 0.50 0.25 generation 0
0.26 0.51 0.24 generation 1
0.24 0.48 0.28 generation 2
0.25 0.50 0.25 generation 3
0.27 0.50 0.23 generation 4
The genotype frequencies over five generations recorded above do not show perfect concordance between expected and observed values. The departures from expectation are, most likely, the result of
a. mutation b. drift c. selection d. nonrandom mating e. phlebotomy

mutation lead to chnage in gene frequency from one generation to next  generation

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