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प्रश्न
Where are the untranslated regions located on mRNA and why?
उत्तर
A translational unit in mRNA is the sequence of RNA that is flanked by the start codon (AUG) and the stop codon and codes for a polypeptide. An mRNA also has some additional sequences that are not translated and are referred as untranslated regions (UTR). The UTRs are present at both 5' -end (before start codon) and at 3' -end (after stop codon). They are required for efficient translation process.
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संबंधित प्रश्न
Which one of the following is a stop codon?
(a) UAG
(b) UAC
(c) AUG
(d) UCA
List two essential roles of ribosome during translation.
Briefly describe the following:
Translation
Which of the following life processes is evolved around RNA?
Which of the following statements is correct regarding ribosomes?
Regulation of gene expression occurs at the level of ______.
The process of translation is ______.
Which of the following is true with respect to AUG?
(a) Identify the polarity of x to x’ in the diagram below and mention how many more amino acids are expected to be added to this polypeptide chain.
(b) Mention the codon and anticodon for alanine.
(c) Why are some untranslated sequences of bases seen in mRNA coding for a polypeptide? Where exactly are they present on mRNA?
Explain the process of aminoacylation of tRNA and its role in the process of translation.
