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NEETZoologyBiotechnology - Principles and Processes

Methods for Introducing DNA Mechanisms A. Micro-injection 1. DNA is injected directly into the nucleus B. Biolistics 2. High-velocity particles coated with DNA C. Heat Shock 3. DNA is transferred by a modified pathogen D. Disarmed Pathogen Vectors 4. Bacteria uptake DNA after heat shock

Options

  1. AA - 1, B - 2, C - 3, D - 4
  2. BA - 1, B - 2, C - 4, D - 3
  3. CA - 4, B - 3, C - 2, D - 1
  4. DA - 2, B - 4, C - 1, D - 3

Correct answer

B. A - 1, B - 2, C - 4, D - 3

Step-by-step solution

Micro-injection involves injecting DNA directly into the nucleus, biolistics uses high-velocity particles coated with DNA, heat shock allows bacterial cells to take up DNA, and disarmed pathogen vectors transfer recombinant DNA into host cells.

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