Multiple choice

Which of the following events takes place in triparental mating?

  1. Two donor cells conjugate simultaneously with a host cell.

  2. One bacterial strain assists another in transferring genetic material to a third bacterial strain.

  3. Host cell receives the genetic material from three donor cells.

  4. Integrated plasmid, along with an external DNA, fuses with the host DNA.
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B Correct answer
Explanation

Triparental mating is a form of bacterial conjugation where a conjugative plasmid present in one bacterial strain assists the transfer of a mobilisable plasmid present in a second bacterial strain into a third bacterial strain. In other words, one bacterial strain helps the another in transferring genetic material to a third bacterial strain.

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