Endonucleases and Exonucleases Are Enzymes That Can Remove Nucleotides from a Polynucleotide

question 61

Multiple Choice

Endonucleases and exonucleases are enzymes that can remove nucleotides from a polynucleotide chain.An endonuclease removes nucleotides ________ while an exonuclease removes nucleotides ________.

• A)from the 5' end of the chain; from the 3' end of the chain
• B)from the 3' end of the chain; from the 5' end of the chain
• C)internally; from the ends of the chain
• D)from the ends of the chain; internally

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