Which of the following would be inhibited by a drug that specifically blocks the addition of phosphate groups to proteins?
A) G protein-coupled receptor binding
B) ligand-gated ion channel signaling
C) adenylyl cyclase activity
D) receptor tyrosine kinase activity
D
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The transduction pathway that activates systemic acquired resistance in plants is initially signaled by _____
A) antisense RNA B) Pfr phytochrome C) salicylic acid D) abscisic acid E) red, but not far-red, light
Describe the major roles of fungi that affect humans and their environment
What will be an ideal response?
In studies designed to determine the origin of HIV, how did the researchers first know that Marilyn the chimp may be infected with HIV?
A. She had been used in HIV research. B. She had tested positive for antibodies against HIV. C. She had HIV DNA in her tissues. D. She had symptoms of HIV infection, or AIDS. E. She had HIV RNA in her blood.
Biochemical tests _________________.
a. are the main methods used to identify unknown bacteria b. are visualized using microscopes c. are used to determine rate of growth d. are the most effective way to determine bacterial shape