In References to the "Alpha-Globin Locus" or "Beta-Globin Locus",the Term

question 29

Multiple Choice

In references to the "alpha-globin locus" or "beta-globin locus",the term "locus" means

• A) a duplicated,ancestral gene.
• B) a chromosome region with a cluster of related globin protein genes.
• C) an alpha-,or a beta-globin protein with a single amino acid change.
• D) the location,in this case red blood cells,where a mutant phenotype is manifested.
• E) a geographical region where a genetic disease like sickle cell anemia is common.

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Definitions:

Insomnia

A sleep disorder characterized by trouble falling asleep, staying asleep, or experiencing restorative sleep, leading to daytime dysfunction.

Peribrachial Area

A region in the brainstem associated with the processing of sensory information, particularly related to pain and visceral inputs, playing a crucial role in the modulation of autonomic functions.

Medial Pontine Reticular Formation

The Medial Pontine Reticular Formation is a part of the brainstem involved in regulating the sleep-wake cycle and coordinating motor activities.

Raphe Nuclei

A group of nuclei found in the brain stem involved in the regulation of sleep and mood, among other functions.