Restriction enzymes cut the DNA into fragments; the fragments join with the host DNA to create recombinant DNA.
B
Recombinant DNA is inserted into a biological vector; the vector houses the recombinant DNA and can produce copies of DNA for itself and the recombinant DNA.
C
Recombinant DNA is inserted into a mechanical vector; the mechanical vector allows the DNA to be inserted into the DNA clone for use in the host.
D
Cloning of the recombinant DNA occurs; the DNA is cloned in the biological vector to create more DNA for use in the host.