[en-doh-noo-klee-eys, -eyz, -nyoo-]
any of a group of enzymes that degrade DNA or RNA molecules by breaking linkages within the polynucleotide chains.
Origin of endonuclease
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Any of a group of enzymes that catalyze the hydrolysis of phosphodiester bonds between nucleic acids in a DNA molecule or RNA sequence.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.