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Chapter Summary

Gene Cloning

CBSE · Class 12 · Biotechnology

Summary of Gene Cloning for CBSE Class 12 Biotechnology. Key concepts, important points, and chapter overview.

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 Gene Cloning — Complete Chapter Overview, Gene Cloning — Chapter Overview, Gene Cloning — Complete Chapter Overview. These are the concepts CBSE Class 12 examiners draw on most — study them first, then practise related questions.
How to score full marks in Gene Cloning — CBSE Class 12 Biotechnology?
Understand the core concepts first, then work through the 72 practice questions available for this chapter. Revise formulas and 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 13 chapters — CBSE Class 12 Biotechnology Chapter Summary

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