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NEETZoologyBiotechnology - Principles and Processes

Read the following statements and choose the correct option: 1. Recipient cells after making them ‘competent’ to receive, take up DNA present in its surrounding 2. If a recombinant DNA bearing gene for resistance to an antibiotic (e.g., ampicillin) is transferred into E. coli cells, the host cells become transformed into ampicillin-resistant cells 3. If we spread the transformed cells on agar plates containing ampici

Options

  1. AAll are correct
  2. BBoth 2 and 4 are correct
  3. COnly 1 and 2 are incorrect
  4. DOnly 4 is correct

Correct answer

A. All are correct

Step-by-step solution

There are several methods of introducing the ligated DNA into recipient cells. Recipient cells after making them ‘competent’ to receive, take up DNA present in its surrounding. So, if a recombinant DNA bearing gene for resistance to an antibiotic (e.g., ampicillin) is transferred into E. coli cells, the host cells become transformed into ampicillin-resistant cells. If we spread the transformed cells on agar plates containing ampicillin, only transformants will grow, untransformed recipient cells will die. Since, du

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