A Stomach Cell Is Producing Pepsin, an Enzyme That Hydrolyzes

question 76

Multiple Choice

A stomach cell is producing pepsin, an enzyme that hydrolyzes proteins. Which of the following events suggests that gene expression of pepsin has been turned off in the cell?

• A) The pepsin protein is folded properly in the cytoplasm.
• B) The chromosome with the pepsin gene is tightly coiled.
• C) The pepsin mRNA leaves the nucleus and enters the cytoplasm.
• D) Activators and RNA polymerases are abundant in the nucleus.

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