If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

Main content

Regulation of cell cycle

AP.BIO: IST‑1 (EU), IST‑1.D (LO), IST‑1.D.1 (EK), IST‑1.D.2 (EK), IST‑1.E (LO), IST‑1.E.1 (EK)

Problem

Adenoviruses are a family of highly contagious viruses that most commonly cause illnesses of the respiratory system, such as bronchitis or pneumonia. In the first phase of an adenovirus infection, the host cell expresses several viral proteins. One of these proteins, E1B-55k, inhibits the activity of the host protein p53, a tumor suppressor that arrests the cell cycle or induces apoptosis when DNA damage is detected.
Which of the following claims is best supported by the information above?
Choose 1 answer:
Choose 1 answer:
Stuck?
Stuck?