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AP.BIO:
IST‑1 (EU)
,
IST‑1.D (LO)
,
IST‑1.D.1 (EK)
,
IST‑1.E (LO)
,
IST‑1.E.1 (EK)
How cancer can be linked to overactive positive cell cycle regulators (oncogenes) or inactive negative regulators (tumor suppressors). 
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