Biology / Unit 4 Bio 0853 short lesson, about 20 seconds
G0 Phase and Quiescence
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The idea
G0 is a quiescent state outside the cell cycle, entered by a cell not preparing to divide, either temporarily or, in some cell types, permanently.
In practice
Mature cardiac muscle and nerve cells remain in G0 permanently, never re-entering the cycle under normal conditions.
Where people slip
A cell in G0 is not dead — it performs its normal roles, only outside the division cycle.
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