After Several Weeks of Feeling Gloomy and Being Socially Withdrawn

question 130

Multiple Choice

After several weeks of feeling gloomy and being socially withdrawn, Marco has suddenly become extremely sociable and talkative. He doesn't seem to need any sleep, and he becomes irritated when his friends tell him to slow down. Marco's behavior is consistent with

• A) obsessive-compulsive disorder.
• B) schizophrenia.
• C) histrionic personality disorder.
• D) bipolar disorder.

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Definitions:

Pre-mRNA

The primary transcript formed during gene expression in eukaryotes, which undergoes processing to become mature mRNA.

Introns

Non-coding sequences of DNA within a gene that are removed during RNA processing before translation.

Codon

A codon is a sequence of three nucleotides in mRNA that specifies a particular amino acid or start/stop signal for protein synthesis.

Ribosomal RNA

A molecular component of ribosomes, essential for protein synthesis in all living organisms, playing a catalytic and structural role in ribosomes.