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प्रश्न
How does initiation of the translation process occur in prokaryotes? Explain.
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
Ribosomes are composed of two subunits; the smaller subunit of a ribosome has a binding site for _________ and the larger subunit has two binding sites for two __________.
The process of translation is ______.
The three codons which result in the termination of polypeptide chain synthesis are ______.
During translation, activated amino acids get linked to tRNA. This process is commonly called as ______.
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 ______.
The first phase of translation is ______
Which of the following is true with respect to AUG?
