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B
Hardy Wienberg
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C
Julian Huxley
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D
C. G. Simpson
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Solution
The correct option is A Sewal Wright Genetic drift is also known as Sewall -Wright effect because it was discovered by Sewall Wright .It is a random change in gene frequency.It is non-directional and occurs only by chance .It occurs in Small population.
Genetic drift can cause elimination of certain allleles or fixation of the other allleles in the population.