GENERAL HISTOLOGY

Detailed explanation-1: -Nucleases are enzymes which break down nucleic acids to free nucleotides. These enzymes are present in the pancreatic juice .

Detailed explanation-2: -Each restriction nuclease cuts the double-helical DNA into fragments of DNA (restriction fragments) that are strictly defined by their property of recognizing a specific sequence of four to eight nucleotides.

Detailed explanation-3: -Nucleases are enzymes which catalyze breakdown of nucleic acids. Depending on the position of nucleotide removed, some nuclease are endonucleases which remove nucleotides from internal positions whereas some nucleases are exonucleases which remove nucleotides from an external location.

Detailed explanation-4: -Nucleases cleave the phosphodiester bonds of nucleic acids and may be endo or exo, DNases or RNases, topoisomerases, recombinases, ribozymes, or RNA splicing enzymes.