How many questions come from Principles of Inheritance and Variation in NEET?

Principles of Inheritance and Variation was examined 113 times across the 13 NEET papers from 2013 to 2025 — about 8.7 questions (35 marks) per paper.

Is Principles of Inheritance and Variation important for NEET 2027?

Yes — at roughly 8.7 questions a paper it is one of the higher-yield Biology chapters, and the NEET 2027 syllabus (NMC/UGMEB, December 2025) retains it.

How can I practice Principles of Inheritance and Variation for NEET for free?

nextAIR holds 98 tagged questions on Principles of Inheritance and Variation across 27 concepts. Adaptive practice and a timed chapter test both start from this page, free, with no signup.

Practice & Test Principles of Inheritance and Variation

Class 12 Biology · Chapter 4. Practice 98 free NEET 2027 questions on Principles of Inheritance and Variation (Class 12 Biology), across 27 concepts. Asked ~8.7× per paper since 2013.

nextAIR's analysis of 4,858 tagged NEET questions (2013–2026) finds Principles of Inheritance and Variation draws about 5.5 questions per paper in the recent sittings (2023–2026), against 4.35 per paper historically — trend up.

Practice questions

Concepts tagged

113

Asked 2013–2025

8.7×

Per paper

Part of the Genetics And Evolution unit in NEET Biology.

How much does Principles of Inheritance and Variation matter?

Across the 13 NEET papers from 2013 to 2025, Principles of Inheritance and Variation has been examined 113 times — an average of 8.7 questions per paper. At 4 marks each, that is roughly 35 marks a year riding on this one chapter. Where it sits against every other chapter, weighted to the eight most recent papers with 2026 included, is in the NEET 2027 chapter-wise weightage.

Most repeated in Principles of Inheritance and Variation

Topics by share of the 8 most recent NEET sittings in which they appeared, from nextAIR's 4,858-question PYQ pack (2013–2026).

Genetic Disordersasked 42× · 1.75 per paper recently · trend stable100%repeat
Inheritance of One Geneasked 32× · 1.88 per paper recently · trend up87.5%repeat
Inheritance of Two Genesasked 19× · 0.5 per paper recently · trend down50%repeat
Sex Determinationasked 11× · 0.75 per paper recently · trend up37.5%repeat
Polygenic Inheritanceasked 4× · 0.25 per paper recently · trend up25%repeat
Pleiotropyasked 5× · 0.25 per paper recently · trend up12.5%repeat

All most-repeated NEET topics

What gets asked: 26 concepts

Every question in the bank is tagged to one of these, so practice can target the exact idea you keep missing.

AllelesChromosomal Disorder in HumansChromosomal DisordersChromosomal Theory of InheritanceCrossing OverDeviation from Mendelian GeneticsGeneIncomplete DominanceLaw of Independent AssortmentLaw of SegregationLinkageLinkage and Crossing OverMendel's Laws of InheritanceMendelian Disorders in HumansMendelian GeneticsMonohybrid CrossMultiple AllelismMutationPolygenic InheritanceSex DeterminationSex Determination in AnimalsSex Linked InheritanceSickle-cell AnaemiaTerminologies Used in GeneticsTest Crossvariety:pedigree

Sample questions

Question 1

A cross between two tall pea plants (Tt x Tt) results in 70 tall offspring and 'X' dwarf offspring. If the expected phenotypic ratio is 3:1 for tall:dwarf, what is the approximate number of dwarf offspring ('X')?

Question 2

Assertion (A): Linked genes always segregate together. Reason (R): Linked genes are located on the same chromosome and are inherited together.

Question 3

Assertion (A): Linked genes located on the same chromosome always show recombination. Reason (R): Recombination frequency depends on the distance between two genes on a chromosome.

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Practice adapts as you go — get one wrong and the next question targets the same concept instead of moving on. Or sit a timed test to see where you actually stand.

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Frequently asked

How many questions come from Principles of Inheritance and Variation in NEET?: Principles of Inheritance and Variation was examined 113 times across the 13 NEET papers from 2013 to 2025 — about 8.7 questions (35 marks) per paper.
Is Principles of Inheritance and Variation important for NEET 2027?: Yes — at roughly 8.7 questions a paper it is one of the higher-yield Biology chapters, and the NEET 2027 syllabus (NMC/UGMEB, December 2025) retains it.
How can I practice Principles of Inheritance and Variation for NEET for free?: nextAIR holds 98 tagged questions on Principles of Inheritance and Variation across 27 concepts. Adaptive practice and a timed chapter test both start from this page, free, with no signup.