Lab Activity Blood Type Pedigree Mystery Answer Key Upd · Proven

Once your pedigree is complete, cross-reference it with the evidence. The thief must have:

Apply concepts of statistics and probability to explain the variation and distribution of expressed traits in a population. Key Concepts Reinforced Multiple Alleles: The IAcap I to the cap A-th power IBcap I to the cap B-th power Codominance: IAcap I to the cap A-th power IBcap I to the cap B-th power are expressed equally in type AB blood. Complete Dominance: Both IAcap I to the cap A-th power IBcap I to the cap B-th power completely mask the recessive allele (Type O). Quick Reference: Blood Type Genetics

Answer: A child with Type O blood must inherit a recessive

: If the blood types of the parents are known, their genotypes can be inferred. For example, if a parent has Type A blood, they could be either AA or AO. lab activity blood type pedigree mystery answer key upd

: Since attached earlobes are recessive ( aa ), any individual with that trait must be aa .

Spend 10 minutes practicing pedigrees where circles represent females, squares represent males, and shaded shapes represent the trait in question before layering the blood-typing logic on top.

The Rh factor (+ or -) follows simple Mendelian inheritance. The positive allele ( ) is completely dominant over the negative allele ( −negative Phenotype to Genotype Mapping: Type A: IAIAcap I to the cap A-th power cap I to the cap A-th power (Homozygous) or IAicap I to the cap A-th power i (Heterozygous) Type B: IBIBcap I to the cap B-th power cap I to the cap B-th power (Homozygous) or IBicap I to the cap B-th power i (Heterozygous) Type AB: IAIBcap I to the cap A-th power cap I to the cap B-th power (Codominant) Type O: (Recessive) Rh+: ++positive positive +−positive negative Rh-: −−negative negative The Mystery Scenario (Standard Setup) Once your pedigree is complete, cross-reference it with

To solve the pedigree, you must work backward from the children's blood types to find the father's (Joseph) missing information: : Joseph has : His genotype is cap I to the cap B-th power i for blood type and (heterozygous) for the Rh factor. : Since Joseph and Rita (who is cap I to the cap A-th power cap I to the cap B-th power

allele. If they have a Type B child and Rita is AB, Joseph must provide either an cap I to the cap B-th power Joseph's Typical Result: , Genotype cap I to the cap B-th power i Course Hero 4. Match Suspects to the Crime Scene

The most common version of this activity is the "Mystery in Wexford." Here's the scenario: Complete Dominance: Both IAcap I to the cap

Blood Type Pedigree Mystery lab activity, the thief is identified as . Based on the clues provided in the scenario, has blood type attached earlobes , matching the evidence collected at the crime scene. Course Hero 1. Identify inheritance patterns

Pedigree analysis is a fundamental skill in genetics, allowing students to trace phenotypes and genotypes through multiple generations. Combining pedigree analysis with blood typing creates an engaging, real-world mystery that reinforces concepts of codominance, multiple alleles, and Mendelian inheritance.

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 (

Start by translating the phenotypes (blood types and ear shapes) into genotypes where possible.