Which among the following is a tool of recombinant DNA technology?

All of these.

a-Ligase enzymes.

b-Cloning vectors.

c-Restriction enzymes.

d-All of these is the correct option.

DNA technology can be accomplished only if we have the key tools, i.e., restriction enzymes, polymerase enzymes, ligases, vectors and the host organism.

All of the options mentioned (Ligase enzymes, Cloning vectors, and Restriction enzymes) are tools used in recombinant DNA technology. Ligase enzymes are used to join DNA fragments, cloning vectors are used to carry and replicate the recombinant DNA, and restriction enzymes are used to cut DNA at specific recognition sites during the cloning process.