Meaning of RESTRICTION ENZYME

WordNet Dictionary
	Definition:		[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
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	Synonyms:		restriction endonuclease, restriction nuclease
	See Also:		endonuclease
Biology Dictionary
	Definition:		A protein that recognizes specific, short nucleotide sequences and cuts DNA at those sites. Bacteria contain over 400 such enzymes that recognize and cut over 100 different DNA sequences.
Glossary
	Definition:		A protein that recognizes specific, short nucleotide sequences and cuts DNA at those sites. Bacteria contain over 400 such enzymes that recognize and cut more than 100 different DNA sequences. an enzyme used to "cut" the DNA molecule at specific sites; used in recombinant DNA technology.