Why Are Single-Nucleotide Polymorphisms (SNPs), Which Have Been Associated with Schizophrenia

question 8

Multiple Choice

Why are single-nucleotide polymorphisms (SNPs) , which have been associated with schizophrenia and bipolar disorder, currently not used to diagnose either of these disorders?

• A)The changes in gene activity caused by the SNPs is not sufficient to cause disease expression.
• B)SNPs are associated with nicotine dependence but not with schizophrenia or bipolar disorder.
• C)The SNPs are too small to result in either a frameshift mutation or a point mutation.
• D)These SNP-induced gene changes cannot be altered by pharmacologic therapy.

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Definitions:

Esophagus

The muscular tube that connects the throat (pharynx) with the stomach, responsible for moving swallowed food and liquids.

Large Intestine

The final section of the gastrointestinal tract, responsible for water absorption and the formation of feces.

Mucosal Layer

The damp internal surface of certain organs and bodily cavities, including the stomach, lungs, nose, and mouth.

Small Intestine

A part of the digestive system where the majority of digestion and absorption of nutrients occurs; it is made up of the duodenum, jejunum, and ileum.