Answer Key Upd New! | Lab Activity Blood Type Pedigree Mystery

Step 3: Work Backwards from OffspringIf a child has Type O blood (OO), they must have received one O allele from each parent. This means that even if a parent has Type A or Type B blood, their genotype must be heterozygous (AO or BO). This is the most common "aha!" moment in the lab activity.

The Lab Activity Blood Type Pedigree Mystery Answer Key: Solving the Genetic Puzzle lab activity blood type pedigree mystery answer key upd

While specific lab versions vary, most "updated" mystery activities follow a similar logic. Here are the likely answers for the standard pedigree markers: Step 3: Work Backwards from OffspringIf a child

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 The Lab Activity Blood Type Pedigree Mystery Answer

Step 4: Check Parental ConstraintsIf a parent is Type AB, they cannot have a Type O child because they don’t have an O allele to pass down. Similarly, if a parent is Type O, all of their children must carry at least one O allele. The Mystery Answer Key: Common Scenarios