Question

The replacement of one plasmid by another by introduction of the second plasmid into strain containing the first, followed by removal of the first by counterselection is known as __________

(a) shuffle vector

(b) plasmid shuffle

(c) counterselection plasmid

(d) combination plasmid

The question was asked in an international level competition.

I need to ask this question from Other Systems topic in chapter Using Other Organisms of Genetic Engineering

Answer 1

Correct choice is (b) plasmid shuffle

The best I can explain: Plasmid shuffle is the system where one plasmid is replaced by another via introduction of the second plasmid into the strain containing first. It is followed by the removal of first by counterselction.