Answer / guest

Endonucleases cut nucleic acids in the middle of the strand
whereas exonucleases cut from the ends.

Answer / karthik.b

Endonuclease cuts nucleic acids at the middle of the
strand.Example: s1 nuclease, Dnase,Restriction endonuclease.

Exonuclease cuts nucleic acids from the ends.Example:BAL31

Answer / afrin shaikh

endonuclease cut polypeptide chain at middle position where
phosphodiester bond present

exonuclease cut polypeptide chain at end of strand where
phosphodiester bond present

Answer / wedyan

Exonucleases are enzymes that work by cleaving nucleotides one at a time from the end (exo) of a polynucleotide chain. A hydrolyzing reaction that breaks phosphodiester bonds at either the 3’ or the 5’ end occurs.

Its close relative is the endonuclease, which cleaves phosphodiester bonds in the middle (endo) of a polynucleotide chain.

Answer / forbiteh

first exonuclease is a type of DNA polymerase mostly it
helps in proofing reading by cutting phosphodiester bonds
at the end of the strand in the case of a mismatched pair.

endonuleases are mosty produced by bacteria mostly for
defense mechansism againsit foreign dna e.g that of a virus
and they cut phosphodiester bonds within the dna strand at
point called restriction sites.

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