A foreign DNA and plasmid cut by the same restriction endonuclease can be joined to form a recombinant plasmid using
Eco R1
Taq Polymerase
Polymerase III
ligase
As learnt in
Ligase -
These enzymes form phosphodiester bonds between adjacent nucleotides and covalently link two fragments of double-stranded DNA.
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Ligase are enzymes that join two phosphodiester bonds thus, forming recombinant plasmid.
Option 1)
Eco R1
This answer is incorrect
Option 2)
Taq Polymerase
This answer is incorrect
Option 3)
Polymerase III
This answer is incorrect
Option 4)
ligase
This answer is correct