In What Way Do Upstream Activator Sequences (UASs),regulatory Sequences in Yeast,differ

question 37

Multiple Choice

In what way do upstream activator sequences (UASs) ,regulatory sequences in yeast,differ from enhancers and silencers?

• A) UASs function only downstream.
• B) UASs function only upstream.
• C) Enhancers function only downstream.
• D) UASs function in the middle of transcription units.
• E) UASs can function only in the 5′-3′ direction.

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Definitions:

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