Q. The most important feature in a plasmid to be used as a vector is
A) Origin of replication
B) Presence of a selectable marker
C) Presence of sites for restriction endonuclease
D) Its size
Explanation
The most important feature in a plasmid to be used as a vector is origin of replication (Ori). Origin of replication is a specific sequence of DNA bases which is responsible for initiating replication. A prokaryotic DNA has a single origin of replication while eukaryotic DNA may have more than one origin of replication
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.