Biotechnology and its Applications
CBSE · Class 12 · Biology
Step-by-step guide to study Biotechnology and its Applications in CBSE Class 12 Biology. Topics to cover, practice strategy, and time allocation.
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Learn the Theory
Read the textbook chapter carefully. Note down definitions, formulas, and key concepts.
Practice Problems
Solve textbook exercises and additional practice questions. There are 42 questions available for this chapter.
Revise & Test
Revise key formulas and concepts without looking at notes. Take a practice quiz to test your understanding. Mark weak areas for re-revision.
Spaced Revision
Revisit Biotechnology and its Applications after a week. Use flashcards for quick recall. Solve previous year questions from this chapter.
What to Focus On
- Explants are plant parts grown in sterile nutrient media.
- Micropropagation produces somaclones, which are genetically identical plants.
- Meristem culture can produce virus-free plants.
- Recombinant therapeutics are safer and more effective than non-human products.
- Insulin is made of A and B chains linked by disulphide bridges.
- Pro-insulin contains a C peptide that is removed during maturation.
- Most transgenic animals are mice.
- Transgenic animals help study physiology and disease.
- They can produce useful biological products.
Common Mistakes to Avoid
Bt toxin kills the Bt bacterium itself, so the bacterium must be naturally resistant to its own toxin.
All Bt genes work against the same insect pest in all crops.
RNA interference destroys the nematode directly.
Memory Tips
Three critical research areas of biotechnology
Three options for increasing food production
Explants and tissue culture
Micropropagation and somaclones
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Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.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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Important Questions
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Revision Notes
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Formula Sheet
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Chapter Summary
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Concept Maps
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Flashcards
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Syllabus
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NCERT Solutions
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