How Does the Metabolism of RRNA Differ from That of TRNA

question 103

Multiple Choice

How does the metabolism of rRNA differ from that of tRNA in eukaryotic cells?

• A) rRNA is cleaved from a larger precursor while tRNA is transcribed as such from the transfer RNA cistrons.
• B) rRNA is made in the nucleus while tRNA is synthesized in the cytoplasm.
• C) The methylated bases in rRNA are added at the polymer level while in tRNA these bases are incorporated as nucleoside triphosphates.
• D) rRNA forms specific complexes with proteins in the nucleus while tRNA does not.

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Definitions:

Voice Box

The larynx, an organ in the top of the neck involved in breathing, producing sound, and protecting the trachea against food aspiration.

Larynx

The organ at the upper end of the trachea that contains the vocal cords.

Nasal Cavity

The large air filled space above and behind the nose in the middle of the face, an important part of the respiratory system.

Higher Altitudes

Regions located at a great height above sea level, often associated with lower atmospheric pressure and decreased oxygen levels.