A Fur Color Gene in Rabbits Has a White Dominant

Multiple Choice

A fur color gene in rabbits has a white dominant (W) and brown recessive allele (w) .The environment changes suddenly and none of the white rabbits survive.In a population of 10,000 rabbits the initial frequency of W in the pool was 0.7.How many generations would be required to eliminate all W alleles from the population? Assume that there is no mutation and the population meets all other Hardy-Weinberg conditions.

A) 1
B) 2
C) 5
D) 20
E) It can never be eliminated.