Question

Plasmids are used for carrying out the cloning procedure. Which of the statement is true for plasmids?

(a) Bacterial plasmids are linear in nature

(b) They are single stranded

(c) Insertion of DNA into plasmid allows it to be propagated in host cells and they are known as vectors because of their this property

(d) They are not capable of replication in bacteria

I got this question in unit test.

This intriguing question comes from Cloning using a Simple Plasmid and Alpha Complementation topic in division Simple Cloning of Genetic Engineering

Answer 1

The correct answer is (c) Insertion of DNA into plasmid allows it to be propagated in host cells and they are known as vectors because of their this property

The best explanation: Plasmids are double stranded and they are circular in nature. They are capable of replication in bacteria. Insertion of DNA into plasmid allows it to be propagated in host cells and the molecules which are used for propagation by this method are called as vectors.