In which of the following region, exonuclease will cut the DNA?

Question

In which of the following region, exonuclease will cut the DNA? (A) Within the polynucleotide chain. (B) At end of the polynucleotide chain. (C) At particular recognition sites on polynucleotide. (D) At end of the polypeptide chain.

Tardigrade Admin · Accepted Answer

Restriction enzymes belong to a larger class of enzymes called nucleases. They are of two types: exonucleases and endonucleases. Exonucleases remove nucleotides from the ends of the DNA whereas, endonucleases make cuts at specific positions within the DNA.

Q. In which of the following region, exonuclease will cut the DNA?

Within the polynucleotide chain.

At end of the polynucleotide chain.

At particular recognition sites on polynucleotide.

At end of the polypeptide chain.

Restriction enzymes belong to a larger class of enzymes called nucleases. They are of two types: exonucleases and endonucleases. Exonucleases remove nucleotides from the ends of the DNA whereas, endonucleases make cuts at specific positions within the DNA.