the.com/cell cycle
A cell's to-do list before splitting in two: grow, copy everything, double-check, divide.
means The repeating sequence of stages a cell goes through — growth, DNA replication, and division — that produces two daughter cells from one.
from 'Cell' traces to Latin cella, a small storeroom or chamber, applied to biology in the 1600s when early microscopists saw plant tissue's tiny walled compartments and thought of monks' cells in a monastery. 'Cycle' comes from Greek kyklos, meaning circle or wheel. Put together in the 20th century as biologists mapped the orderly, repeating stages of growth and division, the phrase literally means a wheel of little chambers — each turn producing two where there was one.
- checkpoints
- Built-in quality control stops error-filled copies from dividing
- interphase length
- Takes up roughly 90 percent of the whole cycle
- cancer link
- Most cancers are just this cycle ignoring its own brakes
- dna duplication
- Entire genome copied once, precisely, during S phase