Having pondered the Rh factor question, I felt an urge to flip through my university genetics text. I found some information that relates to Anne Boleyn.
The book briefly discusses polydactyly (having more than the usual number of digits i.e. fingers and toes). The usual number in this anomaly being six on each hand and foot. It says that the most common occurrence in this condition is to have both the hands and feet affected. Less commonly it is confined to just the hands or just the feet. Was the rumor about Anne always just about one finger on one hand? If so,that sounds like it would be exceedingly rare. Were her feet ever mentioned?
It also states that polydactyly is a dominant trait. This means that Anne's mother or father would have shown this trait in some form. Was anything ever mentioned about her parents?
My previous opinion on the finger question is that is was a false rumor concocted by Anne's enemies. I think that this bit of scientific info reinforces the rumor as untrue. Any thoughts?
[Ed. note - related threads on the "sixth finger" are posted below]