All of the Following Statements Regarding Toll-Like Receptors Are True

Multiple Choice

All of the following statements regarding Toll-like receptors are true except _____.

A) They exist as either transmembrane homodimers or heterodimers.
B) The extracellular domain detects the microbial component.
C) They facilitate changes in gene expression.
D) They sense molecules not found in or on human cells.
E) The cytoplasmic signaling domain contains a variable number of leucine-rich repeat regions (LRRs) .