miRNAs, tRNAs, and rRNAs all _____________
(a) do not code for proteins.
(b) act in the nucleus.
(c) are packaged with other proteins to form RISC.
(d) form base pairs with mRNA molecules.
(a)
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The electron transport system
A. requires a membrane. B. utilizes the nuclear membrane of eukaryotes. C. utilizes the mitochondrial membrane of prokaryotes. D. generates a concentration gradient of protons. E. requires a membrane AND generates a concentration gradient of protons.
Which of the following statements about malaria is FALSE?
a. It kills about 2 million people each year. b. It can be treated with the drug chloroquine. c. An effective vaccine exists to protect from it. d. It can be treated with the drug quinidine. e. It can be treated with the drug quinine.
Which of the following is NOT a component of bacterial flagella?
A) flagellin B) basal body C) tubulin D) filament E) hook
Mycoplasmas are named for the large quantities of mycolic acid in their cell walls
Indicate whether the statement is true or false