The older versions often omit Rh factor. Add a fourth claimant with Type A- or B+. Then discuss how Rh- mother carrying an Rh+ baby can cause hemolytic disease of the newborn (HDN), adding a medical ethics layer to the mystery.
Answer: YES.
Mystery element: The servant claimed O is impossible. The servant is wrong – but wait, the lab says "Keep reading... the royal bloodline historically has never produced O."
To help you update your own lab manual, here is a clean answer key format for the most likely questions: lab activity blood type pedigree mystery answer key upd
Q1: Draw the pedigree for a family where Mom is Type A (heterozygous), Dad is Type O. They have 3 children: Type A, Type O, and Type A.
A1: (Diagram: circle Mom (IAi), square Dad (ii). Children: circle (IAi), square (ii), circle (IAi).)
Q2: Could a Type AB father and a Type A mother have a Type O son? Explain.
A2: No. Type AB father (IAIB) has no i allele to pass. Type O requires genotype ii. Therefore impossible.
Q3: In the "Hospital Mix-Up" version:
Every year, biology teachers face the same challenge: how to make Mendelian genetics and immunology engaging without resorting to rote memorization. Enter the Blood Type Pedigree Mystery Lab Activity. This hands-on simulation combines the logic of a "whodunit" mystery with the rigorous science of ABO blood typing and pedigree analysis.
If you’ve searched for the phrase "lab activity blood type pedigree mystery answer key upd" , you are likely either:
This article serves as your ultimate resource. We will break down the mystery, provide the updated answer key, explain the science behind each conclusion, and discuss common student errors and how to correct them. The older versions often omit Rh factor
Could the father (Type AB) have been the biological son of the paternal grandparents (Type A and Type B)?
Answer: Yes. If the grandfather is AO and the grandmother is BO, they can produce an AB child (A from dad, B from mom). This is a 25% probability.