Mader/Biology, 10/e – Chapter Outlines

A. Multiple Allelic Traits. 1. This occurs when a gene has many allelic forms or alternative expressions. 2. ABO Blood Types. a. The ABO system of human blood types is a multiple allele system. b. Two dominant alleles (IA and IB) code for presence of A and B glycoproteins on red blood cells. c. ................
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