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restriction enzyme

DEFINITIONS OF: restriction enzyme

1

n any of the enzymes that cut nucleic acid at specific restriction sites and produce restriction fragments; obtained from bacteria (where they cripple viral invaders); used in recombinant DNA technology

Synonyms:
restriction endonuclease, restriction nuclease
Type of:
endonuclease
a nuclease that cleaves nucleic acids at interior bonds and so produces fragments of various sizes
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