Biotechnology - NEET Previous Year Questions with Complete Solutions

The most important topics, based on PYQ frequency data, are: restriction endonucleases and cloning vectors, PCR steps and applications, Bt crops and Cry proteins, gene therapy (ADA deficiency), and recombinant insulin production. These five areas account for approximately 70% of all Biotechnology NEET questions.

Biotechnology is considered one of the more straightforward Biology topics for NEET. It is entirely fact-based and NCERT-driven, with limited conceptual depth compared to Genetics or Ecology. Students who read NCERT carefully and solve 10 years of PYQs consistently score full marks in this section

NEET typically includes 2–4 questions from the two Biotechnology chapters (Chapters 11 and 12, Class 12 Biology) every year. Based on PYQ data from 2015 to 2024, the average is 3 questions per paper, which translates to 12 marks — making it a high-return topic relative to its study time

One day before NEET, focus only on high-frequency facts: names of restriction enzymes and their recognition sequences, the steps of PCR, Cry protein names (CryIAc, CryIIAb), ADA deficiency as the first gene therapy case, and E. coli-based insulin production. Avoid re-reading full chapters. Instead, use a flashcard list of 20–25 key facts derived from PYQ answer patterns.

Chapter 11 (Biotechnology: Principles and Processes) covers the tools and techniques — restriction enzymes, vectors, PCR, gel electrophoresis, and recombinant DNA technology step-by-step. Chapter 12 (Biotechnology and Its Applications) covers real-world uses — insulin production, gene therapy, Bt crops, RNAi, and bioethics. NEET tests both equally and often mixes sub-topics within a single question

Yes. eSaral provides chapter-wise NEET PYQs with detailed solutions through its app. You can download the eSaral app and access Biotechnology PYQs with video solutions, step-by-step written explanations, and concept revision notes — all in one place, designed by faculty with verified All India Ranks