An Overview of Recombinant DNA Technology
CBSE · Class 12 · Biotechnology
Summary of An Overview of Recombinant DNA Technology for CBSE Class 12 Biotechnology. Key concepts, important points, and chapter overview.
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Recombinant DNA technology, also called genetic engineering, refers to methods used for directly manipulating the nucleic acid or genome of an organism. Its development became possible through major advances in DNA structure, replication, and the discovery of enzymes that can cut and join DNA. A cen
Key Concepts
Recombinant DNA technology is the set
Recombinant DNA technology is the set of methods used for directly manipulating the DNA or genome of an organism. It is also known as genetic engineer
Gene cloning is the isolation
Gene cloning is the isolation and propagation of a desired DNA molecule or gene from a source so that its product can be obtained in ample quantity.
Restriction enzymes act as scissors
Restriction enzymes act as scissors that cut molecules of DNA at specific sites.
Ligase joins two DNA fragments together
Ligase joins two DNA fragments together.
Stanley Cohen had expertise in introducing
Stanley Cohen had expertise in introducing plasmid DNA into Escherichia coli and in the propagation and cloning of plasmids in bacteria.
Learning Objectives
- Understand the meaning of recombinant DNA technology and genetic engineering.
- Recognize the scientific discoveries that made rDNA technology possible.
- Identify the roles of restriction enzymes and ligase in DNA manipulation.
- Explain the contributions of Stanley Cohen and Herbert Boyer to the development of rDNA technology.
- Recall the major milestones in the history of biotechnology.
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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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