日本人の味覚並びに味盲に関する研究

第3報遺伝的関係

抄録

The relationship between an unbalanced diet and the frequency of various senses of taste to wards the three reagents, P. T C., lactose and Aspirin were previously reported several times by the present author.
As the result of his further researehes on the heredity of taste-blindness, the author has reached the following conclusion;
1) When the subjects are divided into two groups according to whether or not the marriage within the blood and the marriage without the blood relation, the percentage of appearances of taste-blindness is rather higher in case of the intermarriage.
2) The author has investigated 491 persons of 79 families about the effects of the three above-mentioned reagents and has come to the conclusion that all the appearences of taste-blindness can be supposed to be the simple recessive heredity in Mendelism and to have no bases to support the dominant heredity.
3) As for the heredity of the preceding tastes and the false tastes to the three agents 79 families have been examined, and it has been ascertained by the author that as the taste-blindness is recessive in heredity to the taste-ability, so the preceding taste and the false taste are to be ascribed to recessive heredity to the normal taste