Ch.17 - Gene ExpressionWorksheetSee all chapters
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Sections
Gene Expression and the Genetic Code
Transcription
RNA Processing
Translation
Mutation

Solution: The 5' untranslated region of the mRNA containsA. the termination sequenceB. The Shine-Dalgarno sequenceC. The promoterD. The 16S rRNA

Problem

The 5' untranslated region of the mRNA contains

A. the termination sequence

B. The Shine-Dalgarno sequence

C. The promoter

D. The 16S rRNA

Solution

The translation process is basically the creation of the equivalent polypeptide encoded by the information contained in the mRNA. However, the translated information does not include the entire mRNA sequence. This is due to the presence of untranslated region in both the 5' and 3' ends. Just to clarify, the untranslatedregion of the mRNA is different from the introns present in premature RNA molecules. The untranslated region is the segment of mature mRNA (i.e. post-splicing) that is mainly located before the location of the start codon and after the location of the stop codons.

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