2023 source guide · Biology

NEET 2023 Biology Genetics Questions

Connect the official 2023 paper with current Biology practice without labelling original previews as PYQs.
Practice 500 verified questions →Check official NTA archive ↗
500 original questions · explicit provenance labels
BiologyPlate 37
NeetVellum atlas · fig. biology
37

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

In the self-cross RrYy × RrYy, where round and yellow are dominant, 160 offspring are obtained. Which expected distribution follows the dihybrid phenotypic ratio?

  • A. 80 round yellow, 40 round green, 20 wrinkled yellow, 20 wrinkled green
  • B. 90 round yellow, 30 round green, 30 wrinkled yellow, 10 wrinkled green
  • C. 120 round yellow, 20 round green, 10 wrinkled yellow, 10 wrinkled green
  • D. 40 of each phenotype

Example 2 · difficulty 2/5

What was the major inference from the appearance of round-green and wrinkled-yellow seeds in the F₂ generation of Mendel's dihybrid cross involving seed shape and colour?

  • A. Dominant alleles always remain together
  • B. Recessive alleles permanently modify dominant alleles
  • C. Alleles of different gene pairs can assort independently
  • D. Seed shape determines seed colour

Example 3 · difficulty 1/5

An RrYy pea plant is test-crossed. What phenotypic ratio is expected if the two gene pairs assort independently and show complete dominance?

  • A. 9:3:3:1
  • B. 3:1
  • C. 1:2:1
  • D. 1:1:1:1

The evidence-first practice loop

  1. 1. Verify provenanceOfficial paper and final key before accepting a PYQ label.
  2. 2. Attempt closed-bookExpose the concept or execution gap before rereading.
  3. 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 2023 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 2023 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.

Built by NeetVellum · original practice, explicit provenance, no fabricated PYQ claims.
NEET 2023 Biology Genetics Questions · NeetVellum