A(n) ________ operon is one whose transcription is repressed by effector molecules.
A. activated
B. repressible
C. inducible
D. coinducible
E. compressible
B. repressible
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Growth of pathogens in a food generally does not result in perceptible changes in the quality of the food but the ingestion of this food can result in
A. spoilage. B. foodborne illness. C. aging. D. toxin infection.
Some archaea are commonly found in
A. meteors. B. boiling hot springs. C. the Great Salt Lake. D. your refrigerator. E. boiling hot springs AND the Great Salt Lake.
Which are structures formed from the neural crest? (Check all that apply.)
_____ a gill chamber of primitive chordates _____ blastopores _____ sensory neurons of the dorsal root ganglia _____ Schwann cells _____ olfactory and hearing organs
Inflammation, complement proteins, and phagocytes are a part of ____ immunity
a. adaptive b. innate c. antibody-mediated d. cell-mediated e. surface barrier