First slide

Translation

Question

Choose the incorrect statement with respect to structure of mRNA.

Easy

A

Complete length of mRNA is described as translational unit.
B

The first Codon in a translational unit is AUG.
C

The last codon in a translational unit does not indicate any amino acid.
D

Untranslated regions are present before the start codon and after the termination codon.

Solution

Complete length of mRNA is not translational unit. The translational unit is present in between Untranslated Region I and Untranslated Region II. In Eukaryotes, in additions to this there is a Cap at the 5ʹ end and poly A tail at the 3ʹ end.

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