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Midphalangeal hair : ウィキペディア英語版 | Midphalangeal hair
Midphalangeal hair, or the presence/absence of hair on the middle phalanx of the ring finger, is one of the most widely studied markers in classical genetics of human populations. Although this polymorphism was observed at other fingers as well, for this kind of research, the fourth finger of the hand has been conventionally selected. ==Description== In man, hair is commonly present on all the basal segments of the digits and invariably absent from all the terminal ones. On the middle segments, there is wide fluctuation with apparent familial and racial tendencies. Hair is present on the middle segment of the fingers more frequently than on the middle segment of the toes. Hair is most often found on the middle segment of the fourth finger.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Midphalangeal hair」の詳細全文を読む
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