Question

Disablement is also done in plasmids. Choose the correct statement.

(a) The strains carrying out the recombinant plasmids should not escape outside

(b) Preferred strains are having mutations which allow their growth in wild

(c) Mutations confer prototrophy

(d) If the recombinants escape outside, there is no such harm

The question was asked in examination.

Asked question is from Transformation and Hosts in division Simple Cloning of Genetic Engineering

Answer 1

The correct choice is (a) The strains carrying out the recombinant plasmids should not escape outside

Easiest explanation: Disablement is also done in plasmids, in order to ensure that the recombinant plasmids don’t escape outside. If they escape outside, it causes contamination. Preferred strains are having mutations which don’t allow their growth in the wild. Mutations confer autotrophy. Autotrophy is the condition of the introduction of particular metabolites in the medium because they are not synthesized. The opposite of autotrophy is called as prototrophy.