Which of the following statements is correct with respect to exonuclea – McqOptions

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1.	Which of the following statements is correct with respect to exonuclease?
A.	They only act on single stranded DNA molecules
B.	They only act on double stranded DNA molecules
C.	They remove a single nucleotide base at a time
D.	They remove nucleotide bases from the middle of a polynucleotide chain
Answer» D. They remove nucleotide bases from the middle of a polynucleotide chain

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