Which of the Following Is/are Type I Interferon

Question

Which of the following is/are Type I interferon?
A) NOD-receptors
B) TLR4
C) IFN-beta
D) IFN-gamma
E) cytokines

Accepted Answer

IFN-beta is a type I interferon, while the other choices are not. NOD-receptors and TLR4 are pattern recognition receptors, IFN-gamma is a type II interferon, and cytokines are a broad class of signaling molecules.