Hand prints and handedness.
PubMedPublished 1 June 1955Open access
David C. Rife
Citations33
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TL;DR
Perhaps the most convincing evidence of a genetic basis for a behavioral trait is to establish an association between it and a highly heritable physical variation which develops during fetal life, and which is not altered by postnatal circumstances.
Keywords
Neuroscience
GeneticsHANDEDNESS, WITH SPECIAL REFERENCE TO TWINS
193 Citations1940David C. Rife
The familial incidence of left-handedness rather definitely indicates a genetic basis, and there should be a definite stage in embryonic development for the establishment of each trait showing bilateral asymmetry, beyond which separation of the embryo should result in intra-pair variation, if separation should occur at some previous time.
Annals of EugenicsGENETICS OF DERMAL RIDGES: INHERITANCE OF TOTAL FINGER RIDGE‐COUNT
44 Citations1953SARAH B. HOLT