Cell Phases
Hayflick describes three phases in the life of a cell. At the start of his experiment he named the primary culture "phase one". Phase two is defined as the period when cells are proliferating – Hayflick called it the time of "luxuriant growth". After months of doubling the cells eventually reach phase three, a phenomenon of senescence – cell growth diminishes and then cell division stops altogether.
Read more about this topic: Hayflick Limit
Famous quotes containing the words cell and/or phases:
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