Wednesday, 23 February 2022

Assertion : Bacteriophage vectors are more advantageous than plasmid vectors. Reason : Bacteriophage vectors can be easily detected at the time of cloning experiments.

Assertion : Bacteriophage vectors are more advantageous than plasmid vectors. 

Reason : Bacteriophage vectors can be easily detected at the time of cloning experiments.

Answer (a) Both assertion and reason are true and reason is the correct explanation of assertion.

Reason (a) : Bacteriophage vector have two advantages over plasmid vectors.

(i) They are more efficient than plasmids for the cloning of large DNA fragments. For example, the largest cloned insert in lambda phage is 24kb while for plasmid vector it is less than 15 kb.
(ii) It is easier to screen a large number of phage plaques than bacterial colonies for identification of recombinant vectors.