Before diving into the pedigree, we must establish the rules of the game. Blood typing is governed by three alleles: A, B, and O.
A and B alleles are codominant. If an individual inherits both, their blood type is AB. The O allele is recessive. An individual only has Type O blood if they inherit two O alleles. Therefore, the possible genotypes are:Type A: AA or AOType B: BB or BOType AB: ABType O: OO Decoding the Pedigree Mystery lab activity blood type pedigree mystery answer key upd
Step 2: Identify the CodominantsNext, locate the Type AB individuals. Their genotype is always AB. These individuals are "fixed points" in your puzzle because there is no ambiguity about which alleles they carry. Before diving into the pedigree, we must establish