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Biology

Biotechnology: Principles and Processes

A Biology chapter of the NEET syllabus, and how to practise it for the computer-based exam.

Exam rules change between cycles. Confirm dates, syllabus and pattern against NTA's official site. We are not NTA.

Weightage: what the paper actually did

Biotechnology: Principles and Processes carried 10 questions in the NEET 2026 paper. One paper is a data point, not a destiny: NTA moves weight between chapters every cycle, which is why the weightage tables deserve care. The stable facts are the paper's shape: 180 questions, 720 marks, +4 right, −1 wrong.

Sample PYQs from this chapter

Real questions NTA asked from Biotechnology: Principles and Processes, with the answer and the working. Try before you peek.

Question 1 · NEET 2020

In gel electrophoresis, separated DNA fragments can be visualized with the help of
  1. A.Ethidium bromide in UV radiation
  2. B.Acetocarmine in UV radiation
  3. C.Ethidium bromide in infrared radiation
  4. D.Acetocarmine in bright blue light
Answer and explanation

Answer: A

Separated DNA fragments in gel electrophoresis are visualized using ethidium bromide, which intercalates with DNA and fluoresces under UV radiation. Chapter: Biotechnology: Principles and Processes.

Question 2 · NEET 2020

The sequence that controls the copy number of the linked DNA in the vector, is termed
  1. A.Ori site
  2. B.Palindromic sequence
  3. C.Recognition site
  4. D.Selectable marker
Answer and explanation

Answer: A

The origin of replication (Ori site) controls the copy number of the linked DNA in a vector. This site is essential for the initiation of DNA replication and determines how many copies of the plasmid are made within the host cell. Chapter: Biotechnology: Principles and Processes.

How to practise Biotechnology: Principles and Processes

Chapter by chapter, against real past-paper questions, on a screen: NEET is computer based from 2027. Read the chapter once, then attempt its PYQs until your accuracy stops climbing, and let the wrong answers tell you which lines to reread. If the chapter keeps refusing to stick, that has its own guide. There is also a free NEET mini mock with answers.

Nearby Biology chapters

Questions

How many questions did Biotechnology: Principles and Processes have in NEET 2026?

Biotechnology: Principles and Processes carried 10 questions in the NEET 2026 paper. Weightage shifts between cycles, so treat it as a probability, not a promise.

Where can I practise Biotechnology: Principles and Processes PYQs for NEET?

Explore available chapter-wise NEET practice in BrainIt, free until the 2027 exam. Review explanations and track chapter accuracy to guide your revision. Sample questions from this chapter are on this page.

Is Biotechnology: Principles and Processes important for NEET 2027?

It is part of the Biology syllabus the paper draws from, and NEET 2027 is computer based, so practise it on a screen. Your own accuracy in the chapter matters more than any weightage table: a heavy chapter you already score well on needs less time than a light one you keep missing.

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