Multiple choice

Which of the following statements is not correct regarding plasmids?

  1. These are extra chromosomal materials found in bacterial cell.

  2. Mostly they cannot be transmitted from cell to cell by transformation.

  3. They can be integrated into the host chromosome.

  4. They are integral but inert part of the genetic element.

  5. The term plasmid was first introduced by the American molecular biologist Joshua Lederberg in 1952.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Plasmid host-to-host transfer requires direct mechanical transfer by conjugation, or changes in incipient host gene expression allowing the intentional uptake of the genetic element by transformation.

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