:
Combine the evidence:
If a parent has Type B blood and a Type O child, that parent must be heterozygous (). Step 3: Work Forward from Type O Parents A parent with Type O blood ( ) can only pass an lab activity blood type pedigree mystery answer key upd
Lab Activity: Blood Type Pedigree Mystery – Answer Key and Teacher Guide
Because Family 1 parents are both IAicap I to the cap A-th power i , they can produce an (Type O) child ( from mother + from father). Baby 2 (Type AB) belongs to Family 2. Because Mrs. Jones is ABcap A cap B IAIBcap I to the cap A-th power cap I to the cap B-th power ), she can pass on either an allele, making it possible to have an ABcap A cap B V. Final Answers (Answer Key) Which baby belongs to the Smith Family? Answer: Baby 1 (Type O) Reasoning: IAicap I to the cap A-th power i IAicap I to the cap A-th power i can produce an (Type O) child. Which baby belongs to the Jones Family? Answer: Baby 2 (Type AB) Reasoning: Mrs. Jones ( IAIBcap I to the cap A-th power cap I to the cap B-th power ) can produce an AB child, whereas the Smiths cannot. Pedigree Diagram Explanation: : Combine the evidence: If a parent has
Your mission is to create a pedigree (a family tree) for Joseph and Rita's family, map out the blood types and earlobe traits for all potential suspects, and use genetic principles to identify the culprit.
Earlobe attachment is a simpler . Having free earlobes is dominant (let's say allele E ), while having attached earlobes is recessive ( ee ). An individual with attached earlobes must have the genotype ee . Because Mrs
Any relative with Type B, Type AB, or Type O blood is excluded if the evidence is Type A. Final Identification:
These straightforward inheritance rules make blood type an ideal trait for tracking lineage through a pedigree—a family tree that shows the inheritance pattern of a specific trait across generations.
The Lab Activity: Blood Type Pedigree Mystery is more than a game; it is an application of fundamental genetics. By correctly identifying genotypes (
IAIBiIAiIBiiIAiIBi3 lines; Line 1: cap I to the cap A-th power cap I to the cap B-th power; Line 2: i cap I to the cap A-th power i cap I to the cap B-th power i; Line 3: i cap I to the cap A-th power i cap I to the cap B-th power i end-lines; Expected Phenotypic Ratio: