The Human MHC Locus Is One of the Most Polymorphic

question 13

Multiple Choice

The human MHC locus is one of the most polymorphic regions of the genome.What does this mean?

• A)It has the most different genes.
• B)There are many different alleles of these genes.
• C)Sequence variability is low in this region.
• D)There are many introns in this region.
• E)This region is regulated by many different mechanisms.

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Definitions:

Retro-

A prefix meaning backward or behind, often used in medical and scientific contexts to indicate reversal or a backward position.

Post-

A prefix meaning after in time or sequence, following, or subsequent to.

Isthmus

A slim stretch of territory bordered by the ocean on both sides, connecting two larger land masses.

Fallopian Tube

is a pair of tubes along which eggs travel from the ovaries to the uterus in the female reproductive system.