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Biotechnology and its Applications — Revision Notes

BITSAT · Biology

Quick revision notes for Biotechnology and its Applications — key concepts, formulas, and definitions for BITSAT Biology preparation.

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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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Revision Notes — Biotechnology and its Applications

Key concepts, formulas, and definitions from Biotechnology and its Applications for BITSAT Biology preparation.

Key Topics to Revise

1

10.1 Biotechnological Applications in Agriculture

  • Three options for increasing food production: agrochemical-based, organic, and genetically engineered crop-based agriculture
  • Plant tissue culture is the technique of maintaining plant cells, tissues, or organs on artificial sterilized nutrient medium under controlled conditions
  • Explant: any part of plant taken out and grown in test tube under sterile conditions
2

10.2 Biotechnological Applications in Medicine

  • Recombinant DNA technology enables mass production of safe, effective therapeutic drugs
  • About 30 recombinant therapeutics approved worldwide, 12 marketed in India
  • E. coli initially used as host, yeast becoming preferred choice
3

10.3 Transgenic Animals

  • Transgenic animal contains foreign gene (transgene) introduced by transfection
  • Produced for studying normal physiology, disease models, biological products, vaccine safety, chemical safety testing
  • First transgenic animal: mouse with growth hormone gene (supermouse)
4

10.4 Ethical Issues, Biopatents, and Molecular Diagnosis

  • GEAC (Genetic Engineering Approval Committee) regulates GM research and safety
  • Bioethical concerns: species integrity, environmental risks, humanness concept, animal suffering
  • Biopiracy: unauthorized exploitation of biological resources by multinational companies

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Key Concepts

Plant tissue culture is the techniqueMicropropagation uses minute tissue explantsGMOs are organisms whose genetic materialBt cotton contains genes from BacillusRNAi is a natural defense mechanism

Frequently Asked Questions

What topics are covered in Biotechnology and its Applications for BITSAT?
Biotechnology and its Applications is an important chapter in BITSAT Biology. It covers key concepts and formulas that are frequently tested in the exam. Key topics include: 10.1 Biotechnological Applications in Agriculture, 10.2 Biotechnological Applications in Medicine, 10.3 Transgenic Animals, 10.4 Ethical Issues, Biopatents, and Molecular Diagnosis.
How important is Biotechnology and its Applications for BITSAT?
Biotechnology and its Applications is a frequently tested chapter in BITSAT Biology. Questions from this chapter appear regularly in previous year papers. There are 111 practice questions available for this chapter.
How to prepare Biotechnology and its Applications for BITSAT?
Start by understanding the core concepts, then solve practice questions. Focus on formulas and their applications. Use revision notes for quick review before the exam.

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