A gene in humans has two alleles, M and N, that code for different surface proteins on red blood cells. If you know that the frequency of allele M is 0.2, according to the Hardy-Weinberg rule, the frequency of the genotype MN in the population should be
A) 0.16.
B) 0.2.
C) 0.32.
D) 0.64.
E) 0.8.

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The Answer of A gene in humans has two alleles, M and N, that code for different surface proteins on red blood cells. If you know that the frequency of allele M is 0.2, according to the Hardy-Weinberg rule, the frequency of the genotype MN in the population should be
A) 0.16.
B) 0.2.
C) 0.32.
D) 0.64.
E) 0.8.

A Gene in Humans Has Two Alleles, M and N