Proteins Can Initiate and Inhibit Gene Expression

What happens when gene X inhibits gene Y?

• Gene Y produces more proteins

• Gene Y's transcription is prevented

• Gene Y is activated

• Gene Y's transcription is unaffected

What role does the extra protein play in the inhibition of gene Y?

• It assists in the transcription of gene Y

• It has no effect on gene Y

• It enhances the effect of gene X

• It blocks other proteins that activate gene Y

Why does RNA polymerase not initiate transcription in the presence of the extra protein?

• It is attracted to the shape of the protein

• The protein alters the DNA shape unfavorably

• It is repelled by the protein

• It does not recognize the DNA

What is the consequence of the extra protein blocking other activating proteins?

• Suppression of gene Y transcription

• No change in gene Y activity

• Enhancement of gene X activity

• Increased transcription of gene Y

What is the process called when gene X leads to the suppression of gene Y?

• Gene enhancement

• Protein blocking

• Gene activation

• Gene inhibition