Name:	retina
Synonyms:	retinas
Definition:	Multi-tissue structure that contains the retinal neural layer and the retinal pigmented epithelium, and develops from the optic cup.
Ontology:	Anatomy Ontology [ZFA:0000152]

Name:	S phase
Synonyms:	S-phase
Definition:	The cell cycle phase, following G1, during which DNA synthesis takes place.
Ontology:	GO: Biological Process [GO:0051320] QuickGO AmiGO