In this lab activity, students investigate a mysterious blood type pedigree to determine the genotypes and phenotypes of family members. The activity reinforces the understanding of ABO blood types, genotype-phenotype relationships, and Punnett squares.
The following table summarizes the key family members and their traits used to narrow down the thief: Blood Type Earlobe Trait Genotype (Blood/Lobe) Father/Grandfather cap I to the cap B-th power i Mother/Grandmother cap I to the cap A-th power cap I to the cap B-th power cap I to the cap A-th power i Granddaughter cap I to the cap A-th power i 4. Solve the mystery The crime scene evidence consists of Type A- blood attached earlobes Course Hero Suspect Identification lab activity blood type pedigree mystery answer key upd
Ensure pedigrees use circles for females and squares for males. In this lab activity, students investigate a mysterious
Often must be "worked backward" from his children. In many versions, is determined to be cap I to the cap A-th power i Children/Grandchildren: Solve the mystery The crime scene evidence consists
Phenotypes (A, B, AB, O) and Genotypes ( IAIAcap I to the cap A-th power cap I to the cap A-th power IAicap I to the cap A-th power i IBIBcap I to the cap B-th power cap I to the cap B-th power IBicap I to the cap B-th power i IAIBcap I to the cap A-th power cap I to the cap B-th power Codominance: A and B alleles are codominant. Recessive Traits: Type O is recessive (
Below is the definitive analysis of the Pendelton family lineage. Use this updated key to grade student worksheets or guide struggling lab groups. Generation I Analysis Phenotype is Type AB . His genotype must be IAIBcap I to the cap A-th power cap I to the cap B-th power . Eleanor (I-2): Phenotype is Type O . Her genotype must be . Generation II Analysis IAIBcap I to the cap A-th power cap I to the cap B-th power ) and Eleanor ( ) can only pass an IAcap I to the cap A-th power IBcap I to the cap B-th power allele from Arthur, and must pass an
Type A or Type B only.