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CBSE Class 12 Biotechnology — Practice Quiz

Practice quiz for CBSE Class 12 Biotechnology with MCQs and answers. Chapter-wise questions to test your preparation for board exams.

Quick Summary

Chapter-wise practice questions for CBSE Class 12 Biotechnology. MCQs with answers to test your understanding and identify weak areas before the board exam.

How to Use Practice Quizzes

  1. Attempt without notes — test yourself honestly to identify what you actually know.
  2. Review wrong answers — understand why you got it wrong. This is where real learning happens.
  3. Time yourself — practise under exam conditions to build speed and confidence.
  4. Repeat after a week — re-attempt the same quiz after a week to check retention.

Chapter-Wise Practice Questions — 13 Chapters

Preview questions from each chapter. Focus on understanding the question pattern and types asked in CBSE board exams.

1

An Overview of Recombinant DNA Technology

64 questions
multiple choice1 marks

Which scientists discovered plasmids in 1952?

multiple choice1 marks

Which structure of DNA was proposed in 1953?

multiple choice1 marks

Which enzyme acts as scissors to cut molecules of DNA?

+61 more questions — take full quiz in Super Tutor

2

Host–Vector System

64 questions
multiple choice1 marks

What is an episome?

multiple choice1 marks

Which plasmid category provides drug resistance by encoding enzymes that deactivate antibiotics?

multiple choice1 marks

Which plasmid category produces colicins that kill other bacteria?

+61 more questions — take full quiz in Super Tutor

3

Gene Cloning

72 questions
multiple choice1 marks

What is the role of reverse transcriptase in cDNA preparation?

multiple choice1 marks

Which molecule is used to break the peptidoglycan of bacterial cell walls during DNA isolation?

multiple choice1 marks

Which detergent is used for bacterial cell lysis by disrupting the lipid bilayer?

+69 more questions — take full quiz in Super Tutor

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Frequently Asked Questions

Where can I find CBSE Class 12 Biotechnology Practice Quiz?

This page provides practice quiz for CBSE Class 12 Biotechnology for the 2026 board exam. For chapter-by-chapter study help including summaries, quizzes, and flashcards, try Super Tutor.

Biotechnology is one of the scoring subjects in CBSE Class 12 if prepared well. Focus on understanding concepts, practising problems regularly, and revising key formulas. Most students who follow a structured study plan score above 80%.

Start by understanding the complete syllabus. Then focus on important questions from each chapter. Use revision notes for quick review before exams. Follow a study plan that covers all chapters with dedicated revision time.

Aim to solve at least 20–30 MCQs per chapter. Focus on understanding why each answer is correct. After completing all chapters, attempt full-length mock tests under timed conditions.

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13 chapters available

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CBSE Class 12

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