Pedigree Analysis Example Skin Colour Inheritance | Solved Pedigree NEET Class 12 | Neela Bakore

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Skin colour pedigree solved step by step — pattern identification and genotype assignment.

📌 Topics Covered:
• Step-by-step approach: autosomal or sex-linked? dominant or recessive?
• Solving the Skin Colour pedigree
• Assigning genotypes to all family members
• Common NEET traps in pedigree MCQs
• NEET pedigree question patterns
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Transcript with Timestamp
0:00 Introduction — Autosomal recessive pedigree using skin colour
0:43 Question: intermediate man × albino woman → 3 children (2 daughters, 1 son)
1:22 Second gen: daughter 1 × intermediate man → 1 albino son + 1 daughter
2:32 Draw the pedigree using correct symbols
3:02 Albinism = autosomal recessive disorder
4:11 For pedigree: intermediate = heterozygous (Aa); albino = homozygous recessive (aa)
5:05 Intermediate man (Aa) × albino woman (aa) = P generation
5:42 Albino woman = affected → filled circle
7:07 Interpreting genotypes — mother (aa) gives ‘a’ to all children
7:20 Children not stated as albino → assume intermediate → received ‘A’ from father
7:41 All 3 F1 children are Aa (intermediate)
8:00 F2 albino son: received ‘a’ from BOTH parents (father Aa + mother Aa) → aa
8:16 F2 daughter: not stated as albino → assume intermediate (Aa or AA)
9:09 Summary — how to plot and interpret autosomal recessive pedigrees
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