2021 source guide · Biology

NEET 2021 Biology Biotechnology Questions

Use this page to connect the official 2021 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 220 verified questions →Check official NTA archive ↗

What to master

recombinant-DNA tools, processes and medical, agricultural and environmental applications.

Original practice preview

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

Example 1 · difficulty 2/5

Modern biotechnology relies chiefly on genetic engineering and:

A. maintenance of sterile conditions for large-scale microbial growth
B. uncontrolled contamination of cultures
C. only natural selection in forests
D. preservation of dried plants

Example 2 · difficulty 2/5

Genetic engineering differs from traditional breeding because it can:

A. create matter without genetic material
B. introduce selected DNA into an organism without conventional sexual crossing
C. work only between identical twins
D. avoid all use of host cells

Example 3 · difficulty 2/5

One central principle of genetic engineering is to alter the chemistry of genetic material so that it can be:

A. converted completely into protein before transfer
B. made independent of nucleotide sequence
C. introduced into a host organism and propagated
D. stored only as a museum specimen

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

Biotechnology: Principles and Processes →Biotechnology and its Applications →

Frequently asked questions

Are these official NEET 2021 Biology Biotechnology 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 2021 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.