What Does the "R" Signify in the HLA-DR Locus

question 46

Multiple Choice

What does the "R" signify in the HLA-DR locus?

• A) Recessive gene
• B) Red cell predominance
• C) RNA
• D) Subregion of D

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Definitions:

Sound Wave

A type of wave that is an audible vibration that travels through air or other media and is perceived by the human ear.

Amplitude

The extent of displacement of a wave or oscillation, indicative of the wave's energy or intensity.

Middle Ear

the portion of the ear internal to the eardrum and external to the cochlea, containing the ossicles, which transmit sound vibrations to the inner ear.

Tiny Bones

Small bones, particularly referring to the 3 bones located in the middle ear known as the malleus, incus, and stapes, essential for hearing.