An Exon Is

question 80

Multiple Choice

An exon is:

• A)a protein that is clipped out post-translationally.
• B)RNA that is removed during the processing of an RNA molecule and remains inside the nucleus.
• C)part of an intact, mature mRNA that leaves the nucleus.
• D)a transfer RNA that binds to the codon.
• E)a series of amino acids at the end of a new polypeptide that directs transcription to the ER.

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Definitions:

Dentin

The hard, dense, bony tissue that forms the bulk of a tooth beneath the enamel, providing its primary structure.

Digestion

The breakdown of food to small molecules.

Starches

Complex carbohydrates that plants use to store glucose.

Duodenum

The portion of the small intestine into which the contents of the stomach first enter.