The Primary Difference Between an Enhancer and a Promoter-Proximal Element

question 16

Multiple Choice

The primary difference between an enhancer and a promoter-proximal element is that

• A)enhancers are transcription factors,while promoter-proximal elements are DNA sequences.
• B)enhancers enhance transcription,while promoter-proximal elements inhibit transcription.
• C)enhancers are part of the promoter,while promoter-proximal elements are regulatory sequences distinct from the promoter.
• D)enhancers are at considerable distances from the promoter and can be moved or inverted and still function,while promoter-proximal elements are close to the promoter and their position and orientation must be maintained.
• E)enhancers are DNA sequences,while promoter-proximal elements are proteins that bind proximal to the promoter.

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Definitions:

Cerebrum

The largest part of the brain, responsible for voluntary actions, cognition, memory, and sensory processing.

Brain Stem

The part of the brain connecting the spinal cord with the forebrain and cerebrum, controlling vital functions such as breathing and heart rate.

Body Temperature

The measure of the body's ability to generate and get rid of heat, reflecting the balance between heat production and heat loss, crucial for proper physiological functioning.

Hypothalamus

A region of the brain responsible for producing hormones that control body temperature, hunger, moods, release of hormones from many glands, especially the pituitary gland, sleep, and thirst.