Official NEET-UG 2026 unit 'Genetics And Evolution'. Weightage shown is the NEET pattern average (90 Biology questions spread across 32 chapters), not a paper-by-paper count. 459 original practice questions with explanations in the bank.
• Heredity and variation: Mendelian Inheritance
Deviations from Mendelism- Incomplete dominance, Co-dominance, Multiple alleles and Inheritance of blood groups, Pleiotropy
Elementary idea of polygenic inheritance
Chromosome theory of inheritance
Chromosomes and genes
Sex determination-In humans, birds, honey bee
Linkage and crossing over
Sex linked inheritance-Haemophilia, Colour blindness
• Heredity and variation: Mendelian Inheritance
10 minutes. Bloom-level questions. Know exactly where you stand.
On average about 3 questions per NEET paper come from Principles of Inheritance and Variation, out of 90 in Biology — roughly 3% of the Biology section.
Principles of Inheritance and Variation is rated Medium difficulty for NEET. Official NEET-UG 2026 unit 'Genetics And Evolution'. Weightage shown is the NEET pattern average (90 Biology questions spread across 32 chapters), not a paper-by-paper count. 459 original practice questions with explanations in the bank.
Principles of Inheritance and Variation maps to NCERT Biology XII Ch 4 in the NCERT Biology textbook.
• Heredity and variation: Mendelian Inheritance