Lab Activity Blood Type Pedigree Mystery Answer Key Upd High Quality

A pedigree is a visual chart that tracks a trait through generations. In a blood type mystery lab, squares represent males and circles represent females. Lines connect parents and offspring. The goal is usually to identify the blood type or genotype of a "mystery" individual or to prove paternity/maternity within a fictional scenario.

Children genotypes consistent with phenotypes

Below is an overview of the lab, how to solve the mystery, and a detailed for instructors and students. The Blood Type Pedigree Mystery: A Genetic Investigation I. Introduction to the Scenario lab activity blood type pedigree mystery answer key upd

To crack the case, you first need to understand the genetic rules of blood types. The ABO blood group system is determined by three alleles: IA , IB , and i . The i allele is recessive, while IA and IB are both dominant over i and are with each other. Here's a quick reference table:

To solve the mystery, one must first understand the genetics of the ABO blood group system. A pedigree is a visual chart that tracks

Before diving into the pedigree mystery, students must understand the underlying genetics of the ABO blood group system and the Rh factor. The ABO Blood Group System

A and B alleles are codominant. If an individual inherits both, their blood type is AB. The O allele is recessive. An individual only has Type O blood if they inherit two O alleles. Therefore, the possible genotypes are:Type A: AA or AOType B: BB or BOType AB: ABType O: OO Decoding the Pedigree Mystery The goal is usually to identify the blood

Phenotype is Type A . Her genotype is initially either 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 . (See Generation III to confirm). Generation III Analysis (Solving the Mystery) Case 1: Fiona (David & Grace's Daughter) Fiona (III-2): Phenotype is Type O , meaning her genotype is . The Verdict: For Fiona to be , she must inherit one allele from David and one allele from Grace. We already knew David was IBicap I to the cap B-th power i . This definitively proves that Grace’s genotype is IAicap I to the cap A-th power i

: Utilizing codominance and complete dominance.

Baby 2 (Type AB) belongs to Family Jones. (If the mother is heterozygous IAicap I to the cap A-th power i or homozygous IAIAcap I to the cap A-th power cap I to the cap A-th power , a Type AB child is highly probable when crossed with an IAIBcap I to the cap A-th power cap I to the cap B-th power 3. Analyzing Family Brown Parental Phenotypes: Mother (Type B) x Father (Type A) Parental Genotypes: Mother ( 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 ) x Father ( 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