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Gene Cloning — Chapter Summary

CBSE · Class 12 · Biotechnology

Summary of Gene Cloning for CBSE Class 12 Biotechnology. Part of the CBSE Class 12 Biotechnology syllabus. Gene cloning is the process of using a gene.

72 questions88 flashcards5 concepts

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A diagram illustrating the concept of insertional inactivation using a chromogenic substrate, where insertion of foreign DNA into a gene (e.g., β-galactosidase) inactivates it, leading to a visible ch
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Overview

Gene cloning is the process of using a gene for its product in biotechnology and other applications by transferring a DNA fragment containing the gene of interest into a host cell with the help of a vector. This makes many copies of the gene available for study, use, and further application. The cha

Key Concepts

A gene is selected for cloning

A gene is selected for cloning because of its importance in health, agriculture, economics, or evolution. Since the human genome is very large, findin

Nucleic acids are isolated by breaking

Nucleic acids are isolated by breaking cells open, protecting DNA or RNA from nucleases, separating nucleic acids from proteins and other molecules, a

Restriction endonucleases cut DNA at specific

Restriction endonucleases cut DNA at specific sites. Type II restriction enzymes cut within the recognition site and are used in recombinant DNA techn

Natural DNA transfer in bacteria occurs

Natural DNA transfer in bacteria occurs by transformation, transduction, and conjugation. Transformation is direct uptake of DNA, transduction is viru

After transformation

After transformation, recombinant cells must be separated from non-recombinant cells. Direct selection uses traits such as antibiotic resistance. Inse

Learning Objectives

  • Identify a candidate gene from a genome
  • Understand methods of DNA and RNA isolation
  • Learn the roles of enzymes used in recombinant DNA technology
  • Explain the natural and artificial modes of DNA transfer
  • Describe selection methods for recombinant cells

Frequently Asked Questions

What are the important topics in Gene Cloning for CBSE Class 12 Biotechnology?
Key topics in Gene Cloning include Identification of Candidate Gene, Isolation of Nucleic Acids, Enzymes Used in Recombinant DNA Technology, Modes of DNA Transfer. Study these first, then practise questions on each for the CBSE Class 12 board exam.
How should I revise Gene Cloning for the CBSE Class 12 board exam?
Learn the core ideas first, then work through the 72 practice questions on Gene Cloning. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

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

More resources for Gene Cloning

All CBSE Class 12 Biotechnology Chapter Summary

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