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Would you choose an exonuclease, while p...

Would you choose an exonuclease, while producing a recombinant DNA molecule?

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No, exonuclease will shorten or degrade the DNA fragments containing required gene, because it acts at free ends of linear DNA. It will not provide DNA fragments with sticky ends. Circular plasmid (not having free end) will not get a cut.
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What is recombinant DNA?

Recombinant DNA technology.

The cell which contain recombinant DNA

Construction of recombinant DNA involves

Construction of recombinant DNA involves

The role of DNA ligase in the construction of a recombinant DNA molecule is

First artificial recombinant DNA molecule was created by: