Editing S phase (section)

{{short description|DNA replication phase of the cell cycle, between G1 and G2 phase}}
{{More citations needed|date=December 2010}}

[[File:Asymmetry in the synthesis of leading and lagging strands.svg|thumb|Asymmetry in the synthesis of leading and lagging strands]]

'''S phase''' ('''Synthesis phase''') is the phase of the [[cell cycle]] in which [[DNA]] is [[DNA replication|replicated]], occurring between [[G1 phase|G<sub>1</sub> phase]] and [[G2 phase|G<sub>2</sub> phase]].<ref name=":5">{{Cite book|title=The cell cycle : principles of control|last=David |first=Morgan | name-list-style = vanc |date=2007|publisher=Oxford University Press|isbn=978-0199206100|oclc=813540567}}</ref> Since accurate duplication of the genome is critical to successful cell division, the processes that occur during S-phase are tightly regulated and widely conserved.