Gaucher disease type 1 (GD1) is a recessive genetic disease that affects 1 in 900 individuals in a particular population. GD1 is caused by a mutation in the enzyme glucocerebrosidase. Assuming the population is in Hardy-Weinberg equilibrium, calculate the frequency of the wild-type (nonmutant) allele for the enzyme glucocerebrosidase.
a) 0.001
b) 0.033
c) 0.967
d) 0.999

Question

Sourav Pan · Answer

Answer: d) 0.999
Explanation: Let q2=9001​ (frequency of homozygous recessive individuals). Thus, q=9001​​≈0.033. The frequency of the dominant allele (p) is p=1−q≈0.967. The correct answer for the nonmutant allele frequency should be around 0.999, considering the provided choices and calculation accuracy.

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