Essential Biochemistry - Genetic Engineering (Section 1 - No. 30)
What is the role of a selectable marker in a cloning vector?
To help in the amplification of the cloned gene.
To identify cells that have taken up the vector.
To provide a location for the restriction enzyme to bind.
To cut the target DNA.
Explanation
Selectable markers are used to identify host cells containing the recombinant DNA.
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