Plasma protein polymorphisms in a puzzling Breton community, the Bigoudens

A total of 386 and 393 members of a Breton community, in France, the Bigoudens, have been tested for polymorphisms of C3 and haptoglobin (Hp) plus Transferrin (Tf) respectively. An interesting observation was a gap between the observed and expected phenotype C3 frequencies. The Hp and Tf gene frequencies were not found to be closer to the other Celtic peoples than to the French and English populations.