Lab Activity Blood Type Pedigree Mystery Answer Key Upd Page

| Blood Type (Phenotype) | Possible Genotypes | Antigen on RBC | Antibody in Plasma | | :--- | :--- | :--- | :--- | | | IAIA or IAi | A antigen | Anti-B | | B | IBIB or IBi | B antigen | Anti-A | | AB | IAIB | A and B antigens | None | | O | ii | None (H antigen only) | Anti-A and Anti-B |

The is a popular heredity lab (often from It’s Not Rocket Science ) where you identify a thief by tracing blood types and earlobe traits through a family tree. 🧬 Quick Answer Key The Thief: Danny is the primary suspect. lab activity blood type pedigree mystery answer key upd

Answer Key: Standard pedigree shows Albert (square, B) and Victoria (circle, A) with three children. Child 2 (Louis, circle? or square? depends on gender) marked Type O. | Blood Type (Phenotype) | Possible Genotypes |

To find Joseph's blood type, you must work backward from his children's phenotypes. Joseph and Rita (Type AB-) have four children: (O-), Howard (AB-), (A+), and Danny (A-). is Type O- ( ): Since Rita is IAIBcap I to the cap A-th power cap I to the cap B-th power , she cannot provide an allele. However, the data lists Child 2 (Louis, circle

If a child is Type O, both parents must carry at least one "i" allele.