You want to design a drug that prevents transcription of mRNAs but does not affect transcription of other RNAs. What enzyme would you target?

A) RNA polymerase I
B) RNA polymerase II
C) RNA polymerase III
D) ribozyme
E) methyl transferase


B

Biology & Microbiology

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Using phase contrast microscopy on a wet mount of live cells, you observe motile bacilli moving rapidly and randomly through the field of view, changing directions after a brief tumble and taking off in a different direction

These cells are exhibiting ________ motility. A) twitching B) swimming C) gliding D) twitching or gliding

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Explain why there is a difference in the mechanism by which an animal cell and a plant cell accomplishes cytokinesis

What will be an ideal response?

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Explain how sexual reproduction leads to genetic variation. What is the evolutionary significance of this variation?

What will be an ideal response?

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Salivary amylase begins the chemical digestion of:

What will be an ideal response?

Biology & Microbiology