oncogene
C2CEFR level
85/100Rarity: very rare
TechnicalRegister
A mutated or overexpressed gene that drives malignant cellular transformation.
Activation of the RAS oncogene locks the cell in a state of continuous proliferative signalling.
Rarity runs from 0 (a word everyone knows) to 100 (almost never seen outside specialist or literary writing). Level is the word's real difficulty on the CEFR scale, from A1 to C2.
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