Question

Which of the following statement is not correct about a cloning vector ?

• A. ‘Ori’ is a sequence responsible for controlling the copy number of the linked DNA.
• B. Selectable marker selectively permitting the growth of the non-transformants.
• C. In order to link the alien DNA, the vector needs to have single recognition site for the commonly used restriction enzymes.
• D. It is generally small in size.

Answer 1

The correct option is B Selectable marker selectively permitting the growth of the non-transformants.

The selectable marker selectively permits the growth of the transformants not non transformants. Therefore cells which have not been transformed will never grow.