Zadanie 6a
A small ribosomal subunit has attached to a eukaryotic mRNA. Describe the remaining initiation steps before elongation begins.
Starting translation and using ribosomal sites
Trace ribosome assembly at the start codon and distinguish the roles of the A, P and E sites.
Tę umiejętność sprawdza 9 zadań wzorowanych na arkuszach IB z lat 2022–2026.
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Zadanie 6b
Outline what happens at the A site and the E site during ribosomal elongation.
Zadanie 2e
Explain why introducing the mRNA does not immediately alter water movement.
- Materiał graficzny
Zadanie 11
The diagram shows a ribosome translating mRNA in the indicated direction. What would directly result from blocking the leftmost binding site labelled P? A. RNA polymerase would reverse transcription B. A deacylated tRNA would be unable to leave through its…
- Materiał graficzny
Zadanie 2b
Three binding sites are used by tRNA molecules during translation. Outline the role of these sites.
Zadanie 2b
Three binding sites are used by tRNA molecules during translation. Outline the role of these sites.
Zadanie 3
The schematic shows ribosomes associated with one mRNA molecule. Identify which marked position, R or S, is closer to the start codon, giving a reason.
- Materiał graficzny
Zadanie 3
The schematic shows ribosomes associated with one mRNA molecule. Identify which marked position, R or S, is closer to the start codon, giving a reason.
- Materiał graficzny
Zadanie 28
Which event occurs before a complete ribosome begins repeated peptide-bond formation during initiation of translation? A. A free polypeptide is released at a stop codon B. The small ribosomal subunit associates with the mRNA C. The entire mRNA is converted…