Which Statement Is NOT True for G Protein-Coupled Receptors (GPCRs)

question 37

Multiple Choice

Which statement is NOT true for G protein-coupled receptors (GPCRs) ?

• A) Agonists mimic the effect of the natural ligand.
• B) Antagonists block the normal effect of the natural ligand.
• C) GPCRs interact with heterodimeric G proteins.
• D) GPCRs are have seven transmembrane helices.
• E) There exist >100 orphan GPCRs in the human genome with no known ligand.

---

Definitions:

Independent Variables

Refers to the inputs or predictors in a statistical model that are manipulated or selected by the researcher to determine their effect on the dependent variable.

COV

A measure of relative variability computed as the standard deviation divided by the mean; also known as the coefficient of variation.

Independent Variables

Variables in a statistical model that are presumed to influence or predict the outcome of a dependent variable.

Variances

Statistical measures reflecting the dispersion or spread of a set of data points or how far each value in the set is from the mean.