Why Would Changes in the Genes for Transcription Factors Be

question 65

Multiple Choice

Why would changes in the genes for transcription factors be expected to generate major phenotypic differences?

• A)They are extremely powerful genes.
• B)They can affect the expression of large numbers of other genes.
• C)They can affect the expression of small numbers of other genes.
• D)Their gene products normally denature more rapidly than other gene products.
• E)Their gene products are remarkably stable.

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Definitions:

Semicircular Canals

Structures in the inner ear involved in maintaining balance and spatial orientation; they detect rotations of the head.

Utricle

A small, fluid-filled sac in the vestibular system of the inner ear, aiding in the sense of balance.

Vestibule

An entrance or enclosed area between the outer door and the interior parts of a building or structure.

Auditory Tube

Also known as the Eustachian tube, it connects the middle ear to the nasopharynx, helping to equalize pressure in the middle ear.