Which of the Following Mechanisms Is (Are) Used to Coordinate

question 24

Multiple Choice

Which of the following mechanisms is (are) used to coordinate the expression of multiple, related genes in eukaryotic cells?

• A) Environmental signals enter the cell and bind directly to promoters.
• B) The genes share a single common enhancer, which allows appropriate activators to turn on their transcription at the same time.
• C) The genes are organized into a large operon, allowing them to be coordinately controlled as a single unit.
• D) A single repressor is able to turn off several related genes.

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Definitions:

Brainstem

The part of the brain that connects the cerebrum with the spinal cord and controls vital functions such as breathing, heart rate, and blood pressure.

Breathing

The physiological process of inhaling oxygen and exhaling carbon dioxide, crucial for respiratory gas exchange.

Heart Rates

The number of heartbeats per unit of time, typically expressed in beats per minute (bpm), indicating heart activity.

Premotor Cortex

A region of the frontal lobe of the brain that is involved in planning, controlling, and executing voluntary movements.