THE Rh TYPES IN CANADIANS OF JAPANESE RACE

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Abstract
The blood of 606 Canadians of Japanese race was tested with the 4 available antisera. Since this sample included entire families, gene analysis was based on a subsample of 217 unrelated individuals. The resulting analysis, based on Fisher''s hypothesis of 8 genes, 6 pairs of allelic antigens, and 6 specific antibodies, is given, and the probable reason for a discrepancy in the findings presented and further tested. Estimates of gene frequencies in % were as follows: R1 58.00; R2 30.76; R" 2.89; Rz 0.40; r, 7.95; R'' 0; Ro O; Ry 0. These results are compared with previous studies on Japanese, and examined in relation to Fisher''s hypothesis of 3 linked loci, and Fisher and Race''s hypothesis of crossing over of elementary antigens.