Multiple Alleles (ABO Blood Types) and Punnett Squares Amoeba Sisters February 28, 2015 Leave a Comment on Multiple Alleles (ABO Blood Types) and Punnett Squares Posted in Seen Them Share: XFacebookPinterestLinkedin Learn how to set up and solve a genetic problem involving multiple alleles using ABO blood types as an example! This video has … source Author: Amoeba Sisters