Assertion(A): In order to link the alien DNA, the vector needs to have very few, preferably single, recognition site for the commoniy used restriction enzymes.
Reason(R): Presence of more than one recognition sites within the vector will generate several fragments, which will complicate the gene cloning.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.