CREB Is a Transcription Factor That Regulates Gene Expression

question 12

Multiple Choice

CREB is a transcription factor that regulates gene expression. It binds to DNA and activates promoters of genes involved in addictive behaviors in alcoholism. Researchers compared CREB levels in the brains of a strain of rats called P rats and wild-type rats. When P rats consumed alcohol,

• A) the total levels of CREB increased.
• B) the total levels of CREB decreased.
• C) the total levels of CREB remained the same.
• D) levels of phosphorylated CREB increased.
• E) levels of phosphorylated CREB decreased.

---

Definitions:

Publicly Accessible

Refers to spaces, resources, or services that are open and available to the general public.

Personal Journal

A private written record where an individual documents personal experiences, thoughts, and reflections, often used for personal development or catharsis.

Spam

Communications that take the form of electronic junk mail or unsolicited e-mail.

Electronic Junk Mail

Unwanted or unsolicited email, often of a commercial nature, sent in bulk to a large list of recipients.