Are rh negatives more likely to have wavy hair?

This is not about any official study but my own personal observations. If you are on Twitter, please take a second to vote on this poll or leave an answer below. To all rh negatives out there, what type of hair do you have? — Rhesus Negatives (@RhesusNegatives) September 6, 2017 Added: Since so many of you are Facebook addicts, you can also comment there.