2017 source guide · Biology

NEET 2017 Biology Biotechnology Questions

Use this page to connect the official 2017 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 3/5

To obtain tobacco plants resistant to the root-knot nematode Meloidogyne incognita, nematode-specific gene sequences were introduced into the host plant so that both sense and antisense RNA would be produced. These sequences were delivered into the host using:

A. Gene gun (biolistic method)
B. Agrobacterium vectors
C. Electroporation of protoplasts
D. Microinjection into zygotes

Example 2 · difficulty 3/5

Which of the following statements about molecular diagnosis of disease is INCORRECT?

A. PCR can amplify the nucleic acids of pathogens, permitting detection even when their concentration is extremely low
B. ELISA detects infection by exploiting antigen–antibody interactions
C. Cloned genes can be used as probes to bind complementary DNA, the hybrids being detected by autoradiography
D. Conventional methods such as serum and urine analysis can reliably detect pathogens at the earliest stage of infection, making molecular techniques unnecessary

Example 3 · difficulty 4/5

Read the following statements about genetically engineered (recombinant) insulin: (i) Insulin consists of two short polypeptide chains, chain A and chain B, joined together by disulphide bridges. (ii) In mammals, including humans, insulin is synthesised as a pro-hormone that contains an extra stretch called the C-peptide. (iii) Mature, functional insulin retains the C-peptide. (iv) Eli Lilly prepared two DNA sequences corresponding to chains A and B, introduced them into plasmids of E. coli to produce the two chains separately, and then combined them to yield human insulin (Humulin). Which of the above statements are correct?

A. (i), (ii) and (iii)
B. (i), (ii) and (iv)
C. (ii), (iii) and (iv)
D. All four statements

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 2017 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 2017 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.