The distribution of ABO blood groups and color vision deficiency have been determined in a sample of 827 inhabitants of Valparaiso city (males and females), aged 12 through 18 years. Analysis of these data is based upon geographic subdivisions of the city known to differ ethnically and socio-economically. The association of these latter variables with the two genetic markers can be seen in the variation between the subgroups in the ABO gene frequencies and in the color blindness frequency. Some subgroups have gene frequencies with respect to these attributes similar to Caucasoid populations while others are similar to Indian Chilean populations. Clearly subdivisions of this nature must be considered in any genetic analysis of a mixed Chilean population.

Keywords:
ABO blood groups, Color blindness, Distribution in Valparaiso
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© 1971 S. Karger AG, Basel
1971
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