G Steinman1. 1. Department of Obstetrics and Gynecology, Long Island Jewish Medical Center, New Hyde Park, New York, USA. dav4601@aol.com
Abstract
OBJECTIVE: To examine, using fingerprint homology, the interaction of genetic and environmental factors in arriving at the final phenotypic expression in uniovular triplets, quadruplets and quintuplets. STUDY DESIGN: The fingerprints of several multifetal sets were collected and matched. A total of 250 fingers were printed. A comparison based on the classic dactylographic patterns was made. Zygosity of each set was known from placental chorionicity studies, as well as blood typing and physical similarities. RESULTS: As the monozygotic set size increased, the ipsilateral print concordance diminished. At one extreme, with twins there is 88% homology; at the other end, with quintuplets the correspondence is 71%. CONCLUSION: The overall trend of these results paralleled increasing intrauterine environmental diversity and tended to support the volar pad pressure hypothesis of prenatal fingerprint development.
OBJECTIVE: To examine, using fingerprint homology, the interaction of genetic and environmental factors in arriving at the final phenotypic expression in uniovular triplets, quadruplets and quintuplets. STUDY DESIGN: The fingerprints of several multifetal sets were collected and matched. A total of 250 fingers were printed. A comparison based on the classic dactylographic patterns was made. Zygosity of each set was known from placental chorionicity studies, as well as blood typing and physical similarities. RESULTS: As the monozygotic set size increased, the ipsilateral print concordance diminished. At one extreme, with twins there is 88% homology; at the other end, with quintuplets the correspondence is 71%. CONCLUSION: The overall trend of these results paralleled increasing intrauterine environmental diversity and tended to support the volar pad pressure hypothesis of prenatal fingerprint development.
Authors: Kristine Marceau; Minni T B McMaster; Taylor F Smith; Joost G Daams; Catharina E M van Beijsterveldt; Dorret I Boomsma; Valerie S Knopik Journal: Behav Genet Date: 2016-03-05 Impact factor: 2.805