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Genetic variability among peoples of Aruba and Curaçao.

Data were obtained from 252 elementary school pupils in four regions of Aruba and in the suburbs of Willemstad, Curacao. Data included ABO and MN blood groups, ratings of skin color and hand prints. Pupils in the Noord region of Aruba differ significantly from those at other schools in both islands with respect to frequencies of MN blood group genes; mean ridge counts on fingers; and pattern frequencies in hypothenar and thenar/first interdigital palmar areas. Noord pupils have significantly darker skin color than those in other Aruban areas. No significant differences were encountered in ABO frequencies, which are more similar to those of Negroes than to American Indians and Caucasians. 
 
 
 
MN blood group frequencies and finger prints of pupils in the Noord region are similar to those of American Indians, whereas those in other regions are similar to those of Negroes and western Europeans.