When referring to attenuation in regulation of the trp operon, it would be safe to say that when there are high levels of tryptophan available to the organism, ________
A) transcriptional termination is likely
B) ribosomes are stalling during translation of the attenuator region
C) translational termination is likely
D) the trp operon is being transcribed at relatively high levels
E) tryptophan is inactivating the repressor protein
A
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The process that produces mRNA from DNA is called
A. transcription. B. translation. C. replication. D. processing. E. post-translational modification.
Exoenzymes play which following main roles in the disease process?
a. dissolve the host defensive barriers b. inflict damage on tissue c. synthesize bacterial DNA for binary fission d. increase the amount of systemic inflammation
The ________ molecule hides the myosin-binding site on the actin when muscles are not contracting.
A. tropomyosin B. ATP C. neurotransmitter D. calcium
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