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प्रश्न
How does initiation of the translation process occur in prokaryotes? Explain.
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उत्तर
For initiation, the ribosome binds to the mRNA at the start codon (AUG) that is recognised only by the initiator tRNA. The ribosome proceeds to the elongation phase of protein synthesis. During this stage, complexes composed of an amino acid linked to tRNA, sequentially bind to the appropriate codon in mRNA by forming complementary base pairs with the tRNA anticodon. The ribosome moves from codon to codon along the mRNA. Amino acids are added one by one, translated into Polypeptide sequences dictated by DNA and represented by mRNA. At the end, a release factor binds to the stop codon, terminating translation and releasing the complete polypeptide from the ribosome.
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संबंधित प्रश्न
Briefly describe the following:
Translation
Which of the following life processes is evolved around RNA?
In an mRNA molecule, untranslated regions (UTRs) are present at ______.
UTRs are the untranslated regions present on ______.
Explain the process of aminoacylation of tRNA and its role in the process of translation.
How many different proteins does the ribosome consist of?
Which of the following is the start codon in translation?
What are the three stop codons that signal the termination of translation?
During the elongation stage of translation, what ensures that the correct amino acid is placed in the sequence?
What energy molecules are required during translation?
