Example 1 · difficulty 3/5
A plant RrYy is crossed with Rryy. What is the probability of an offspring having wrinkled green seeds?
- A. 1/16
- B. 1/4
- C. 3/8
- D. 1/8
2025 source guide · Biology
NEET 2025 Biology Genetics Questions
Use this page to connect the official 2025 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.
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 2 · difficulty 3/5
In RrYy × RrYy, what is the combined probability that an offspring shows either of the two parental phenotypes round yellow or wrinkled green, when the original parents were RRYY and rryy?
- A. 5/8
- B. 3/8
- C. 1/2
- D. 3/4
Example 3 · difficulty 4/5
Among offspring of RrYy × RrYy, what is the probability of being homozygous at exactly one of the two loci and heterozygous at the other locus?
- A. 1/4
- B. 1/2
- C. 3/8
- D. 3/4
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
Frequently asked questions
Are these official NEET 2025 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 2025 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.