What Would the Result Be If a Specific Sigma Subunit

question 3

Multiple Choice

What would the result be if a specific sigma subunit were mutated?

• A)Nothing would result: sigma is not essential.
• B)RNA polymerase would still bind at specific sites,but elongation would fail.
• C)RNA polymerase would fail to initiate transcription at the promoter specific to the sigma subunit.
• D) The core enzyme would not be stable.

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Definitions:

Vertebral Posterior Arch

The posterior portion of the vertebral bone that, together with the vertebral body, encloses the spinal canal.

Nerve Impulses

Electrical signals that travel along nerve cells and are used for communication throughout the body.

Sensation

The process of receiving and interpreting information from the environment through sensory receptors.

Motor Neurons

Nerve cells forming part of a pathway along which impulses pass from the brain or spinal cord to a muscle or gland.