Biotechnology
Kerala Board · Class 12 · Biology
Quick revision notes for Biotechnology — Kerala Board Class 12 Biology. Key concepts, formulas, and definitions for last-minute revision.
Key Topics to Revise
Introduction to Biotechnology
- Biotechnology term was first used by Carl Ericay in 1919
- Combines 'bio' (biology) and 'technology' (technological applications)
- Based on principles of molecular genetics, microbiology, and biochemistry
Genetic Engineering
- Traditional breeding methods are trial and error processes with limitations
- Cannot transfer foreign genes between unrelated organisms through conventional breeding
- Prokaryotic genes cannot be transferred to eukaryotic cells via traditional methods
Recombinant DNA (r-DNA) Technology
- Involves altering genetic material outside an organism
- Aims to obtain enhanced and desired characteristics in living organisms
- Uses insertion of DNA fragments with desirable gene sequences
Steps in r-DNA Technology
- Step 1: Isolation of desired gene from donor organism
- Step 2: Insertion of isolated gene into suitable vector (plasmid)
- Step 3: Introduction of recombinant vector into host cell
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What are the important topics in Biotechnology for Kerala Board Class 12 Biology?
Biotechnology covers several key topics that are frequently asked in Kerala Board Class 12 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Biotechnology — Kerala Board Class 12 Biology?
Start by understanding all key concepts. Practise previous year questions from this chapter. Revise formulas and definitions regularly. Use flashcards for quick revision before the exam.
Sources & Official References
- Kerala Board of Public Examinations — keralapareekshabhavan.in
- National Education Policy 2020 — education.gov.in
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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