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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Krishan k jakhad
The Klenow fragment is a large protein fragment produced when DNA polymerase I from E. coli is enzymatically cleaved by the protease subtilisin... right now coming to ur question..why ?? Lacks or lost 5’ —> 3’ exonuclease activity think if it is present it will never extended...right