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DNA replication in 7 easy steps - Biology for Life
www.biologyforlife.comDNA replication in 7 easy steps . 1. Helicase enzyme breaks hydrogen bonds between bases, unzips and unwinds the helix A protein that catalyzes chemical reactions. –Helicase begins to unwind the DNA at the ORIGIN OF REPLICATION (a ... 1/4/2013 12:17:58 PM ...