A foreign DNA and plasmid cut by the same restriction endonuclease can be joined to form a recombinant plasmid using

Foreign DNA and plasmid cut by same restriction endonuclease can be joined to form r-DNA by DNA ligase enzyme that facilate phhospho diester bond formation between them.EcoRI = is cutting enzyme not joiningTaq polymerase take part in PCR for polymerisation not for joining. Polymerase-III used by prokaryotes for polymerisation of nucleotides not for joining of DNA fragments together.