What is the pattern of inheritance for a polygenic trait?

Non-Mendelian inheritance pattern

X-linked recessive inheritance pattern

Given below are two statements: Statement I: When many alleles of a single gene govern a character, it is called polygenic inheritance. Statement II: In Polygenic inheritance, the effect of each allele is additive. In the light of the above statements, choose the correct answer from the options given below.

Statement I is false but Statement II is true

Statement I is true but Statement II is false

Both Statement I and Statement II are true

Both Statement I and Statement II are false

Principles Of Inheritance And Variation — NEET Previous Year Questions

69 solved PYQs · 2016–2026 · Biology

Solved PYQs: 69
Years covered: 2016–2026
Avg / year: ~6
Subject: Biology

How many NEET questions come from Principles Of Inheritance And Variation?

Principles Of Inheritance And Variation has contributed 69 questions to National Eligibility cum Entrance Test (UG) papers between 2016 and 2026 — an average of about 6 questions a year. That count is measured from EByAi’s bank of 46,150 NEET questions, not estimated from a syllabus. Every one of the 69 questions carries a written, step-by-step solution, and each is tagged to Principles Of Inheritance And Variation within Biology, so you can drill this chapter across every year at once instead of hunting through paper PDFs. Practising a chapter’s full PYQ history is the fastest way to learn the patterns examiners reuse.

Sample Principles Of Inheritance And Variation questions from real NEET papers

These are 5 real questions from the bank — exactly as asked, with the answer one tap away. All 69 Principles Of Inheritance And Variation questions (with full written solutions) are available in practice.

Question 1 · NEET 2026
Which one of the following disorders is caused by the substitution of Glutamic acid (Glu) by Valine (Val) at the sixth position of the beta globin chain of the haemoglobin molecule?
1. (A) $Thalassemia$
2. (B) $Sickle-cell anaemia$
3. (C) $Phenylketonuria$
4. (D) $Haemophilia$
Show answerAnswer
$Answer: (B) Sickle-cell anaemia$
Question 2 · NEET 2026
Which of the following statements are true with reference to the sex-determination in honeybees?

A. An offspring formed from the union of a sperm and an egg, develops as a female (queen or worker).

B. An unfertilized egg develops as a male by parthenogenesis.

C. A male has half the number of chromosomes than that of a female.

D. Males produce sperms by meiosis.

E. Honeybees have a haplodiploid sex-determination system.

Choose the correct answer from the options given below :
1. (A) $A, B, C and E only$
2. (B) $B, C, D and E only$
3. (C) $A, B, C and D only$
4. (D) $A, B, D and E only$
Show answerAnswer
$Answer: (A) A, B, C and E only$
Question 3 · NEET 2025
What is the pattern of inheritance for a polygenic trait?
1. (A) $Autosomal dominant pattern$
2. (B) $X-linked recessive inheritance pattern$
3. (C) $Mendelian inheritance pattern$
4. (D) $Non-Mendelian inheritance pattern$
Show answerAnswer
$Answer: (D) Non-Mendelian inheritance pattern$
Question 4 · NEET 2024
Aneuploidy is a chromosomal disorder where chromosome number is not the exact copy of its haploid set of chromosomes, due to :

A. Substitution

B. Addition

C. Deletion

D. Translocation

E. Inversion

Choose the most appropriate answer from the options given below :
1. (A) $C and D only$
2. (B) $D and E only$
3. (C) $A and B only$
4. (D) $B and C only$
Show answerAnswer
$Answer: (D) B and C only$
Question 5 · NEET 2024
Given below are two statements:

Statement I: When many alleles of a single gene govern a character, it is called polygenic inheritance.

Statement II: In Polygenic inheritance, the effect of each allele is additive.

In the light of the above statements, choose the correct answer from the options given below.
1. (A) $Statement I is true but Statement II is false$
2. (B) $Statement I is false but Statement II is true$
3. (C) $Both Statement I and Statement II are true$
4. (D) $Both Statement I and Statement II are false$
Show answerAnswer
$Answer: (B) Statement I is false but Statement II is true$

Principles Of Inheritance And Variation questions by year

Year	Questions	Share of chapter questions
2026	5
2025	3
2024	10
2023	10
2022	13
2021	3
2020	3
2019	6
2018	3
2017	5
2016	8

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FAQs

How many NEET questions have been asked from Principles Of Inheritance And Variation?

EByAi's bank holds 69 real NEET questions from Principles Of Inheritance And Variation, asked between 2016 and 2026 — about 6 per year on average. Every count is measured from actual papers, not estimated.

Is Principles Of Inheritance And Variation important for NEET?

69 questions over 11 papers make Principles Of Inheritance And Variation a steady-weightage chapter in NEET Biology. The year-wise table above shows exactly how often it appears.

Can I solve Principles Of Inheritance And Variation PYQs online for free?

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