- endonuclease⇄endonuclease, noun.
an enzyme that breaks up strands of DNA into discontinuous segments.
Ex. The enzyme is an endonuclease, able to clip--in the test tube at least--the newly formed DNA helix into fragments shorter than the original RNA templa - endonuclease⇄restriction enzyme orendonuclease
an enzyme that cleaves the DNA strands of a species at a specific site which matches the DNA fragment of another species cut by the same enzyme, enabling segments of DNA from different sources to be joined in new co