Question

Phage based recombination systems are used for ____________

(a) cleaving the molecules at specific sites

(b) adding the molecules at specific sites

(c) breakage and rejoining the molecules at specific sites

(d) breakage at random sites

The question was posed to me in a job interview.

Query is from Enzymes for Ligation topic in section Basics of Genetic Engineering of Genetic Engineering

Answer 1

Correct choice is (c) breakage and rejoining the molecules at specific sites

To explain: Phage based recombination systems are used for breaking and rejoining the molecules at specific sites and not at random sites.