S-phase (synthesis phase) is the part of the cell cycle in which DNA is replicated, occurring between G1 phase and G2 phase. Precise and accurate DNA replication is necessary to prevent genetic abnormalities which often lead to cell death or disease. Due to the importance, the regulatory pathways that govern this event in eukaryotes are highly con... Found on http://en.wikipedia.org/wiki/S_phase
<cell biology> The phase of the cell cycle during which DNA replication takes place. ... (18 Nov 1997) ... Found on http://www.encyclo.co.uk/local/20973