Question

Choose the incorrect statement for shuttle vectors.

(a) These are vector hybrids constructed from E.coli and other plasmids

(b) They are having a varied use

(c) They can replicate and selected in both the species

(d) They are the plasmids which are having naturally broad host range

I have been asked this question in an interview for job.

Question is from Bacteria topic in portion Using Other Organisms of Genetic Engineering

Answer 1

Correct answer is (d) They are the plasmids which are having naturally broad host range

For explanation I would say: Shuttle vectors are those vector hybrids which are constructed artificially with the help of E.coli and other plasmids. They are able to replicate and selected in both the species and thus they are having a varied use. These are the plasmids which are having artificially broad host range because of the introduction of an extra origin of replication.