The term ‘endonuclease’ refers to cutting the DNA sequence from ______________.

A. only within the polynucleotide chain, not at the ends

B. the ends of the chain

C. anywhere in the chain

D. exactly in the middle of the chain

Explanation: The cleavage is done within the polynucleotide chain and not at the ends. The enzyme which cuts the sequence at the ends is known as exonuclease.

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