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Biotechnology and its Applications

CBSE · Class 12 · Biology

Quick revision notes for Biotechnology and its Applications — CBSE Class 12 Biology. Key concepts, formulas, and definitions for last-minute revision.

41 questions44 flashcards5 concepts

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An infographic illustrating the diverse applications of biotechnology, including therapeutics, diagnostics, genetically modified crops for agriculture, bioremediation, and waste treatment.
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Key Topics to Revise

1

Agricultural Applications of Biotechnology

  • Three approaches to increase food production: agro-chemical based, organic agriculture, and genetically engineered crops
  • Green Revolution tripled food supply but couldn't meet growing population demands
  • Tissue culture allows regeneration of whole plants from explants under sterile conditions
2

Bt Cotton and Pest Resistant Plants

  • Bt toxin produced by Bacillus thuringiensis bacteria
  • Bt toxin genes (cry genes) cloned and expressed in crop plants
  • Bt toxin exists as inactive protoxin in bacteria
3

Medical Biotechnology and Therapeutics

  • Recombinant therapeutics don't induce immunological responses
  • About 30 recombinant therapeutics approved worldwide, 12 marketed in India
  • Human insulin production overcomes animal insulin allergies
4

Molecular Diagnosis

  • Early diagnosis crucial for effective disease treatment
  • Conventional methods detect disease only after symptom appearance
  • PCR amplifies nucleic acids to detect very low pathogen concentrations

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Full Notes

Key Concepts

Biotechnology encompasses therapeuticsTissue culture involves growing plant partsPlantsBt toxin from Bacillus thuringiensis killsA cellular defense mechanism where complementary

Frequently Asked Questions

What are the important topics in Biotechnology and its Applications for CBSE Class 12 Biology?
Biotechnology and its Applications covers several key topics that are frequently asked in CBSE 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 and its Applications — CBSE 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

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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