Principles of Inheritance and Variation NEET PYQ — Previous Year Questions with Answers

NEET 2015Mendelian Genetics

A test cross is carried out to:

NEET 2016Mendelian Genetics

In Mendel's experiment, when tall and short plants were crossed, the F1 plants were all tall. When these F1 tall plants were selfed, the phenotypic ratio of F2 was:

NEET 2017Linkage and Recombination

Which of the following will not result in variations among siblings?

NEET 2018Genetic Disorders

A disease caused by an autosomal primary nondisjunction is:

NEET 2019Mendelian Genetics

In a dihybrid cross, if you get 9:3:3:1 ratio it denotes that:

NEET 2020Genetic Disorders

The chromosomal disorder caused by the presence of an additional copy of chromosome 21 is:

NEET 2021Co-dominance

In ABO blood grouping, if both antigens are present, the blood group is:

NEET 2022Multiple Alleles

Multiple alleles are found when:

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Principles of Inheritance and Variation — NEET PYQ Analysis

Principles of Inheritance and Variation is a Class 12 Zoology chapter that has been consistently tested in NEET from 2015 to 2022. This page contains 8 authentic previous year questions from actual NEET exam papers — not model questions or predictions.

Understanding how NEET frames questions from this chapter is crucial for scoring well. Topics frequently tested include Mendelian Genetics, Linkage and Recombination, Genetic Disorders and 2 more. Check the NEET Biology chapter-wise weightage analysis to see how this chapter ranks in importance across 10 years of NEET exams. For comprehensive practice with detailed NCERT-based explanations, download the MedicNEET app which covers 10,000+ questions across the full Biology syllabus.