Question
Biology Question on human health and disease
Plasmids are used as cloning vectors for which of the following reasons?
A
(A) Can be multiplied in culture.
B
(B) Self-replication in bacterial cells.
C
(C) Can be multiplied in laboratories with the help of enzymes.
D
(D) Replicate freely outside bacterial cells.
Answer
(A) Can be multiplied in culture.
Explanation
Solution
Explanation:
Plasmids are used as cloning vectors because they can be multiplied in culture. Plasmids come in many different sizes and are used for many different purposes in biotechnology. They first made their mark in the field of recombinant DNA in the 1970s, being used as a tool to insert genes into bacteria to encourage their production of therapeutic proteins such as human insulin.Hence, the correct option is (A).