試題詳解

27. Which of the following general statement about a G protein-coupled receptor is true? 　1. It contains twelve transmembrane domains. 　2. It is organized with the N-terminus on the cytoplasmic face of the membrane. 　3. It is organized with the C-terminus on the cytoplasmic face of the membrane. 　4. It is found only in eukaryotes
(A) Only 3 is correct
(B) 2, 4 are correct.
(C) 3, 4 are correct.
(D) 1, 2 are correct.
(E) 1, 3, 4 are correct.