Abstract
SummaryVariations in skin color and palm patterns were investigated in two families in which the fathers are of mixed Negro-White origin and the mothers are Dutch. Segregation among the children indicates that two genes with cumulative effects are responsible for dark shades of skin in family A, whereas only one gene is responsible for dark skin in family B.In family A the mother is heterozygous for accessory triradii and vestigial patterns in distal palmar areas, whereas in family B the father is heterozygous. Skin color and patterns in distal palmar areas do not occur independently among the children in family B, suggesting the possibility of linkage.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
