Viral-infected human cells often send out special proteins that serve as an early warning system to uninfected cells. In response, the uninfected cells develop antiviral proteins that protect them. The early warning proteins sent out by viral-infected cells are
A) complement.
B) interferon.
C) antibodies.
D) antigens.
E) antibiotics.

Question

Quizplus · Accepted Answer

Interferons are proteins produced by virus-infected cells that help to protect uninfected cells by inducing the production of antiviral proteins.

Viral-Infected Human Cells Often Send Out Special Proteins That Serve