Scientists unlock the key to cell size regulation and its all in the DNA

By Lauren Fuge
Updated January 28 2022 - 8:06am, first published 3:00am
The image shows a shoot apical meristem (at the centre) with floral buds emerging on its flanks. Cells marked in green are about to enter DNA replication, whilst the magenta marker shows accumulation of KRP4, which is part of the mechanism that regulates cell size. Credit: John Innes Centre

UK researchers have answered this long-standing question in biology. Turns out, they use their DNA content as an internal scale to check how big they are.

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