Translocation of ribosomes on mRNA occurs due to:
Correct answer: B. Elongation factor
- A. Polymerase
- B. Elongation factor
- C. Initiation factor
- D. Release factor
Explanation
The translocation of ribosomes on mRNA during translation occurs due to elongation factors, not initiation factors, release factors, or polymerase. Elongation factors play a key role in moving the ribosome along the mRNA molecule in a 5' to 3' direction, allowing the ribosome to read the mRNA codons and facilitate the step-by-step addition of amino acids to the growing polypeptide chain during translation. The main elongation factor involved in this process in prokaryotes is known as EF-G (Elongation Factor G), which helps move the ribosome down the mRNA, facilitating the translation of the mRNA sequence.
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About Chromosomes
Chromosomes are DNA-protein structures that carry genes and become visible during cell division. Coverage includes chromatin, centromeres, sister chromatids, homologous chromosomes, chromosome number, and the distinction between diploid and haploid cells, with links to DNA replication, mitosis and meiosis.
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In prokaryotes, polypeptide synthesis begins with the formation of:
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The sequence of nucleotides that determines the amino acid sequence of a protein is a:
Which process does not occur during the formation of mRNA?
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