The Reason for Differences in the Sets of Proteins Expressed

question 22

Multiple Choice

The reason for differences in the sets of proteins expressed in a nerve and a pancreatic cell of the same individual is that nerve and pancreatic cells contain different ________.

• A) genes
• B) regulatory sequences
• C) sets of regulatory proteins
• D) promoters
• E) promoter-proximal elements

---

Definitions:

Variable-ratio Schedule

A reinforcement schedule in behavioral psychology where a response is rewarded after an unpredictable number of responses, enhancing motivation to respond.

Specified Number

A particular or exact number that has been identified or stated.

Fixed-interval

A timing-based reinforcement plan where rewards are provided following the first response once a set timeframe concludes.

Variable-interval

An unpredictable reinforcement schedule that provides rewards after an unspecified time period following a response.