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प्रश्न
Explain the process of aminoacylation of tRNA and its role in the process of translation.
How and why is charging of tRNA essential in the process of translation?
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उत्तर
The process of polymerizing amino acids to create polypeptides is referred to as translation. The nucleotides in the mRNA's sequence determine the order and sequence of amino acids. Peptide bonds, which connect the amino acids, are ultimately hold them together. Energy is needed for peptide bond formation. As a result, during the first phase alone, amino acids are activated in the presence of ATP and connected to their corresponding tRNAs, a process known as charging of tRNA or, to be more precise, aminoacylation of tRNA. It would be energetically advantageous for two of these charged tRNAs to create a peptide bond if they were placed close enough to each other side. A catalyst would speed up the process of peptide bond formation.
संबंधित प्रश्न
Which one of the following is a stop codon?
(a) UAG
(b) UAC
(c) AUG
(d) UCA
Briefly describe the following:
Translation
An operon is a ______.
The translation termination triplet is ______.
In an mRNA molecule, untranslated regions (UTRs) are present at ______.
UTRs are the untranslated regions present on ______.
Which cellular process is shown below?
The first phase 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?
