Question

Which of the bacteria are used as hosts?

(a) Gram-positive

(b) Gram-negative

(c) Both gram positive and negative are preferred equally

(d) Both can be used but gram positive is preferred

This question was posed to me in an interview.

My enquiry is from Bacteria topic in division Using Other Organisms of Genetic Engineering

Answer 1

Correct option is (d) Both can be used but gram positive is preferred

Easy explanation: Gram positive bacteria are particularly used as hosts. It is so because they secrete the expressed proteins in the growth medium at a much higher rate.