What type of G-proteins are associated with the visual cycle?
A. Gustducins
B. Transducins
C. Roducins
D. None of the choices are correct.
Answer: B
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Apoptosis of T lymphocytes requires that Sertoli cells produce ________.
A. testosterone B. androgen-binding protein C. FAS ligand D. All of these choices are correct.
This provitamin can be synthesized from dietary cholesterol. Then when the
provitamin stored in the skin is exposed to ultraviolet light, it is changed to an inactive form of vitamin ______ . Fill in the blank(s) with correct word
Blood poisoning is also known as ____
a. anemia b. thalassemia c. septicemia d. leukemia
Red blood cells (RBCs) have been placed in three different solutions: hypotonic, hypertonic, isotonic. What is solution "B" relative to the RBC?
A. hemolyzed B. isotonic solution C. hypertonic solution D. crenated E. hypotonic solution