A Polylinker Increases the Versatility of a DNA Plasmid Because

Question

A polylinker increases the versatility of a DNA plasmid because it contains:
A)a DNA recognition sequences for several different restriction enzymes.
B)a DNA sequence to allow the vector to replicate.
C)a DNA sequence that confers resistance to ampicillin.
D)b and c

Accepted Answer

A polylinker, also known as a multiple cloning site (MCS), contains DNA recognition sequences for several different restriction enzymes. This allows for multiple target DNA fragments to be inserted into the plasmid, increasing its versatility for molecular biology experiments. Choice B is incorrect because the sequence for replication is typically found elsewhere on the plasmid. Choice C is also incorrect because ampicillin resistance is conferred by a separate gene, not directly related to the polylinker.