To solve the pedigree, you must work backward from the children's blood types to find parental genotypes: : Phenotype , Genotype
Is Child 3 biologically related to both parents? lab activity blood type pedigree mystery answer key
The "Blood Type Pedigree Mystery" is a popular forensic-style lab activity used in biology classrooms to teach Mendelian genetics and pedigree analysis . In this scenario, students act as genetic detectives to solve a crime—often a theft—by tracing the inheritance of blood types and other physical traits like attached earlobes through a family tree. Core Concepts of the Mystery To solve the pedigree, you must work backward
Suspects are often narrowed down using earlobe attachment (where attached earlobes are recessive). Mystery Answer Key Blood Type Earlobe Type Determination A+ or B+ Phenotype inferred from offspring genotypes. A- Attached Core Concepts of the Mystery Suspects are often
Both parents are ii, so they can only pass i → child must be ii (Type O).