Describe the positive control exerted by the catabolite-activating protein (CAP). Include a description of catabolite repression
What will be an ideal response?
Regarding regulation of the lac operon, in the absence of glucose, CAP (dependent on cAMP and adenyl cyclase) binds to the CAP site and facilitates transcription (positive control). Transcription of the operon is inhibited in the presence of glucose (catabolite repression).
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The frequency of sound waves reaching the ear determines:
A. intensity of sound B. loudness C. pitch D. tone
Place Koch's postulates in the correct order:
a. isolate microbe from infected subject and cultivate in pure culture b. inoculate susceptible host with pure culture, observe same disease c. Find evidence of a particular microbe in every instance of a disease. d. reisolate same microbe from subject inoculated with cultured microbe
How do the DNA polymerase repair mechanisms work?
What will be an ideal response?
What is a function of plastids?
A. Aerobic respiration B. Environmental sensing C. Breakdown of ATP D. Storage E. Waste removal