2026 source guide · Biology

NEET 2026 Biology Genetics Questions

Use this page to connect the official 2026 paper with current Biology practice. NeetVellum does not claim a chapter appeared in that paper until the official question and final key have been mapped.

Practice 275 verified questions →Check official NTA archive ↗

What to master

inheritance patterns, linkage, molecular genetics, gene expression and variation.

Original practice preview

These are current-syllabus NeetVellum questions, shown separately from historical-paper provenance.

Example 1 · difficulty 2/5

How many distinct genotypic classes and phenotypic classes are expected in RrYy × RrYy under complete dominance and independent assortment?

A. 4 genotypic and 4 phenotypic classes
B. 9 genotypic and 9 phenotypic classes
C. 9 genotypic and 4 phenotypic classes
D. 16 genotypic and 4 phenotypic classes

Example 2 · difficulty 2/5

A pea plant showing a dominant seed character is crossed with a plant homozygous for the corresponding recessive character. All 80 offspring show the dominant character. Which conclusion is best supported?

A. The tested parent is certainly heterozygous
B. The recessive parent produced dominant gametes
C. Dominance failed to operate in this cross
D. The tested parent is most consistently homozygous dominant

Example 3 · difficulty 3/5

Five offspring are produced independently from Tt × Tt. What is the probability that all five are tall?

A. 243/1024
B. 15/32
C. 81/256
D. 3/20

The evidence-first practice loop

1. Verify provenanceOfficial paper and final key before accepting a PYQ label.
2. Attempt closed-bookExpose the concept or execution gap before rereading.
3. Repair and returnClassify the miss and re-practice after a delay.

Canonical chapter practice

Principles of Inheritance and Variation →Molecular Basis of Inheritance →

Frequently asked questions

Are these official NEET 2026 Biology Genetics PYQs?

No. The previews are original NeetVellum practice questions. A historical item receives a PYQ label only after its official paper and authoritative final answer key are attached. Use the official archive for the source paper.

How should I use the NEET 2026 paper?

Solve the official paper under its original timing, verify against the final key, classify every miss, and then use the linked current-syllabus practice bank to repair the exposed concept.