Question

Suppose 64% of a remote mountain village can taste phenylthiocarbamide (PTC) and must, therefore, have at least one copy of the dominant PTC taster allele. If this population conforms to Hardy-Weinberg expectations for this gene, what percentage of the population must be heterozygous for this trait?
A) 1690
B) 32%
C) 40%
D) 48%

Answer 1

I think it’s B which is 32%

Answer 2

I am thinking B, hope this helps :)