G1 Phase


First Gap Phase

First Gap Phases

G1 Phases

G1a Phase

G1a Phases

G1b Phase

G1b Phases

Gap Phase 1

Gap Phase, First

Gap Phases, First

Phase 1, Gap

Phase, First Gap

Phase, G1

Phase, G1a

Phase, G1b

Phases, First Gap

Phases, G1

Phases, G1a

Phases, G1b

The period of the CELL CYCLE preceding DNA REPLICATION in S PHASE. Subphases of G1 include "competence" (to respond to growth factors), G1a (entry into G1), G1b (progression), and G1c (assembly). Progression through the G1 subphases is effected by limiting growth factors, nutrients, or inhibitors.