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CBSE Class 12 Biotechnology — Flashcards for Quick Revision

Practice flashcards for CBSE Class 12 Biotechnology. Quick question-and-answer cards for every chapter to boost memory and revision speed.

Quick Summary

Chapter-wise flashcards for CBSE Class 12 Biotechnology. Each card has a question on the front and answer on the back — perfect for quick daily revision using active recall.

How to Use Flashcards

  1. Read the question — try to answer it in your head before flipping.
  2. Check the answer — compare your answer. Mark cards you got wrong for repeat review.
  3. Spaced repetition — review difficult cards more often. Easy cards can be spaced out.
  4. 10–15 minutes daily — short, consistent sessions are more effective than marathon cramming.

Chapter-Wise Flashcards — 13 Chapters

Preview flashcards for each chapter. Each card tests one key concept, definition, or formula from CBSE Class 12 Biotechnology.

1

An Overview of Recombinant DNA Technology

70 cards

Q: What is recombinant DNA technology?

A: Recombinant DNA technology, also called genetic engineering, means the direct manipulation of the nucleic acid or genome of an organism. It is used to alter genetic material for useful purposes in med

Q: पुनर्योजी DNA तकनीक क्या है?

A: पुनर्योगज DNA तकनीक (recombinant ⟧ 0 technology) या आनुवंशिक अभियान्त्रिकी (genetic engineering) का अर्थ है किसी जीव के न्यूक्लिक अम्ल या जीनोम का प्रत्यक्ष हेरफेर। इसका उपयोग चिकित्सा, कृषि और अनुसंध

Q: जीव विज्ञान में बड़ी प्रगति के बाद ही पुनः संयोजक DNA तकनीक क्यों संभव हुई?

A: यह जैव रसायन, आनुवंशिकी, कोशिका विज्ञान, सूक्ष्म जीव विज्ञान और आणविक जीव विज्ञान में प्रगति के बाद संभव हो पाया। महत्वपूर्ण कदमों में DNA संरचना, आनुवंशिकता में इसकी भूमिका को समझना और DNA को अलग करन

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2

Host–Vector System

80 cards

Q: पुनर्योगज DNA प्रौद्योगिकी में पोषी-वाहक प्रणाली क्या है?

A: यह दो घटक प्रणाली है जो एक अनुकूल मेजबान और एक वाहक से बनी है। वाहक वांछित DNA प्रविष्टि को ले जाता है, और मेजबान उस DNA की प्रतिकृति और अभिव्यक्ति के लिए आवश्यक एंजाइम और प्रोटीन प्रदान करता है।

Q: What is the host–vector system in recombinant DNA technology?

A: It is a two-component system made of a compatible host and a vector. The vector carries the desired DNA insert, and the host provides the enzymes and proteins needed for replication and expression of

Q: Why is a vector needed for gene cloning?

A: A vector is needed because the desired DNA must enter a host cell and be copied there. The vector also needs an origin of replication, unique restriction sites, and at least one selectable marker so t

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3

Gene Cloning

88 cards

Q: जीन क्लोनिंग क्या है?

A: जीन क्लोनिंग जैव प्रौद्योगिकी उद्योग और अन्य विभिन्न उद्देश्यों के लिए एक जीन का उपयोग करने के लिए एक प्रथागत प्रक्रिया है। इसमें रुचि के जीन वाले DNA खंड को एक वेक्टर द्वारा एक मेजबान कोशिका में स्था

Q: What is gene cloning?

A: Gene cloning is a customary procedure to use a gene for its product in the biotechnology industry and various other purposes. It involves transferring a DNA fragment containing the gene of interest in

Q: Why is finding a candidate gene difficult in a genome?

A: A genome is very large, so a target gene is only a tiny part of it. A haploid human genome contains approximately 3.2 billion bp, and a gene of interest may be only 3000 to 3500 bp. That makes gene id

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Frequently Asked Questions

Where can I find CBSE Class 12 Biotechnology Flashcards?

This page provides flashcards 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.

Flashcards use active recall — one of the most effective study techniques. By testing yourself with question-answer cards, you remember concepts 3× longer than passive reading. Use them daily for 10–15 minutes.

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