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Principles of Inheritance and Variation
NCERT Class 12 Biology, Chapter 4 · for NEET UG
1. Read the chapter
The chapter is free on NCERT's site: Biology, Class 12, Chapter 4 (PDF on ncert.nic.in) ↗
2. Practise it section by section
106 questions on this chapter, each tagged to the NCERT section it tests (Shishya practice, NCERT-based). Read a section, then practise up to 10 of its questions — no sign-in for the first 2 answers.
Practise 10 from the whole chapter →
- 4.1 Mendel’s Laws of Inheritance5 questions →
- 4.2 Inheritance of One Gene18 questions →
- 4.2.1 Law of Dominance2 questions →
- 4.2.2 Law of Segregation14 questions →
- 4.3 Inheritance of Two Genes4 questions →
- 4.3.1 Law of Independent Assortment5 questions →
- 4.3.2 Chromosomal Theory of Inheritance8 questions →
- 4.3.3 Linkage and Recombination5 questions →
- 4.4 Polygenic Inheritance3 questions →
- 4.5 Pleiotropy2 questions →
- 4.6 Sex Determination8 questions →
- 4.6.1 Sex Determination in Humans3 questions →
- 4.6.2 Sex Determination in Honey Bee3 questions →
- 4.7 Mutation4 questions →
- 4.8 Genetic Disorders
- 4.8.1 Pedigree Analysis3 questions →
- 4.8.2 Mendelian Disorders13 questions →
- 4.8.3 Chromosomal Disorders6 questions →
3. The NEET topic it covers
- Principles of Inheritance and Variation · 111 checked NEET practice questions
4. The chapter's own questions
38 answer-checked questions on this chapter, with its quiz, are on the Class 12 Biology chapter page.
The practice questions are Shishya's own, written with AI and answer-checked, and tagged to this chapter by Shishya. They are not NCERT's text or exercises and not NEET previous-year questions.