NEET Zoology Genetic Engineering MCQ Question
What is the role of the origin of replication (ori) in a cloning vector?
It initiates replication and controls the copy number of linked DNA.
It acts as a selectable marker to identify transformants.
It facilitates the cutting of DNA fragments by restriction enzymes.
It allows for the movement of DNA fragments during gel electrophoresis.
Correct Answer
Detailed Explanation
The origin of replication (ori) is a sequence from where replication starts, and it controls the copy number of the linked DNA, enabling recovery of many copies of the target DNA.
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