A drug is structurally similar to PABA and inhibits folic acid synthesis. It is most likely a(n)

A) nucleic acid analog.
B) penicillin.
C) tetracycline.
D) azole.
E) sulfonamide.


E

Biology & Microbiology

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In the cell cycle, controlled degradation of regulatory proteins occurs via the

A) P450 - protease pathway. B) cyclin proteolysis pathway. C) ubiquitin-proteosome pathway. D) kinase inhibition pathway. E) none of the above

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The neuronal pathways behind gustatory reception most closely parallel those of

A. olfaction. B. vision. C. limb position. D. light touch. E. pain.

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What is the age of the oldest known terrestrial

rock?

a. 4.4 billion years old. b. 4.4 million years old. c. 4.4 hundred years old. d. 4.4 thousand years old. e. 4.4 qudrillion years old

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In lakes and ponds, the depth at which respiration balances photosynthesis is referred to as the ________ depth of light

Fill in the blank(s) with correct word

Biology & Microbiology