The genotypic frequencies of the MN blood groups in various populations are shown below. Given this information, determine if the genotypic frequenciesd are in general agreement with the Hardy-Weinberg law.

Population Genotypic frequencyMM MN NN
a). U.S. Whites 0.29 0.48 0.23
b). American Indians 0.60 0.35 0.05
c). Australian Aborigines 0.04 0.28 0.68