Re: Relation between fingerprint (10 fingers) and blood type (blood group)

Hello Madronero,

The short answer is no.  No genetic linkages between fingerprint patterns 
and anything else have been found.  Studies of twins and monkey clones 
have shown no association between the three general pattern types 
possible: arch, whorl and loop.  

I think most people would agree that there is a genetic basis for primates 
to have ridges on fingers and feet.  In other words, fundamental genetic 
information that tells the limbs to develop ridge patterns at the ends of 
the digits and on the palms of the hands and soles of the feet.  But 
beyond that, there does not appear to be a genetic basis for even the 
general pattern types obtained. If one existed, one would suspect that it 
would have been discovered.  The fingerprint patterns develop during fetal 
development and these patterns remain with us for life.  Theories on the 
mechanism of pattern development include electrical stimulation from 
migrating nerves and movement of the fetus itself during growth.  Whatever 
the mechanism, it would seem to be of a random nature.

Dale L. Laux
Forensic Scientist