20. Discuss protein synthesis
synthesis?
Answers
Answer:
explanation
Explanation:
Protein synthesis is the process in which cells make proteins. It occurs in two stages: transcription and translation. ... Translation occurs at the ribosome, which consists of rRNA and proteins. In translation, the instructions in mRNA are read, and tRNA brings the correct sequence of amino acids to the ribosome
Protein synthesis is the process in which cells make proteins. It occurs in two stages: transcription and translation. Transcription is the transfer of genetic instructions in DNA to mRNA in the nucleus. It includes three steps: initiation, elongation, and termination.
(i) initiation:
The initiation codon on the mRNA sets the reading frame. What role do the initiation factors play in protein synthesis? activity, which is necessary to resolve secondary structures. ... the translocation or movement of the ribosome along the mRNA during translation.
(ii) elongation:
Elongation is the phase of the protein-synthesis pathway that is responsible for the growth of nascent polypeptide chains. The two-site model postulates that the ribosome has two sites for transfer RNA (tRNA) binding: one that binds aminoacyl-tRNAs preferentially and a second that is specific for peptidyl-tRNAs.
(iii) termination:
Protein synthesis termination is the process by which a completed polypeptide is released from the ribosome after the coding information within a messenger ribonucleic acid (mRNA) has been successfully translated.