Which of the following is NOT a mechanism that has been proposed to explain receptor dimerization of protein-tyrosine kinases?
a) ligands serving to link two receptors together
b) ligand-mediated dimerization
c) receptor-mediated dimerization
d) inactive receptors possessing binding sites for another receptor
Ans: d) inactive receptors possessing binding sites for another receptor
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Climates characteristic of the Mediterranean region are also common in:
a. Nebraska. b. New York. c. Florida. d. Hawaii. e. California
What are the final electron acceptors for the electron transport chains in the light reactions of photosynthesis and in cellular respiration?
a. O2 in both b. CO2 in both c. H2O in the light reactions and O2 in respiration. d. P700 and NADP+ in respiration e. NADP+ in the light reactions and O2 in respiration in the light reactions and NAD+ or FAD
Dogs use panting to dissipate excess heat. What part of their brain detects the need for this response and sends the signal to pant?
A. hippocampus B. amygdala C. prefrontal cortex D. hypothalamus
The four classic signs and symptoms of inflammation include all the following, except
A. chills. B. swelling. C. redness. D. pain. E. warmth.