The rare condition has only been observed in a few families, and has no adverse effects on overall health. Researchers found that, in the case of one family with a history of adermatoglyphia, there was a mutation in the gene that coded for the protein SMARCAD1. They theorized that this protein may be an integral part of fingerprint development—a process that still isn't fully understood.
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Key Facts In This Video
The main pattern of your fingerprints is determined by genetics. 00:21
Volar pads that develop along a slant lead to loop-patterned fingerprints, whereas more central pads lead to arches or whorls. 01:33
The position of the fetus, the density of the amniotic fluid, and other environmental factors in the womb influence the formation of fingerprints. 02:16
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