Class 12 · Biology · Ch 4

Genetics and Evolution

Principles of Inheritance and Variation

NEET20 board marks Tough ~10h to learn

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11 concepts to cover

11 concepts

Mendel's laws (dominance, segregation, independent assortment)Monohybrid and dihybrid crosses, test crossIncomplete dominance and co-dominanceMultiple alleles and ABO blood groupsPleiotropy and polygenic inheritanceChromosomal theory of inheritanceLinkage and recombinationSex determination (humans, birds, honey bee)Sex-linked inheritance (haemophilia, colour blindness)Mendelian and chromosomal disordersPedigree analysis

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Mendel's laws (dominance, segregation, independent assortment)

Monohybrid and dihybrid crosses, test cross

Incomplete dominance and co-dominance

Multiple alleles and ABO blood groups

Quick revision

Under 30 minutes, night-before recap

Principles of Inheritance & Variations One Shot in 15 Minutes | Seep Pahuja | NEET 2025/26

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Board one-shot

Full chapter in one sitting, Hindi / Hinglish

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English one-shot

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Board one-shot

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NCERT Wallah

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English one-shot

Same chapter, English medium

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JEE / NEET level

Concepts + PYQs at competitive depth

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Marathon

Multi-hour whole-subject sessions that cover this chapter

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