हिंदी
Tamil Nadu Board of Secondary EducationHSC Science Class 12

Revision: Principles and Processes of Biotechnology Botany HSC Science Class 12 Tamil Nadu Board of Secondary Education

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Definitions [2]

Define.

Biotechnology

The technique of bringing about improvements in living organisms by genetic modifications and hybridization, for the welfare of human beings is known as ‘Biotechnology’.

Definition: Hybrid Seeds

Seeds produced by recombination of genes from two different crop varieties to obtain improved characteristics, especially in fruits, are called hybrid seeds.

Key Points

Key Points: Biotechnology
  • Biotechnology, a term coined by Karl Ereky in 1919, is the use of biological systems and genetic modifications to develop products and services for human welfare.
  • Traditional biotechnology relies on small-scale, natural processes like fermentation (e.g., producing curd and wine), whereas modern biotechnology operates on a large scale.
  • Modern biotechnology is fundamentally driven by two core techniques: genetic engineering (the targeted alteration of DNA and RNA) and bioprocess engineering.
  • The field experienced a major breakthrough with the development of recombinant DNA technology by Cohen and Boyer in 1973.
  • By integrating disciplines such as molecular biology and biochemistry, biotechnology enables crucial applications in both medicine (antibiotics, vaccines, insulin) and agriculture (high-yield, disease-resistant crops).
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