Explain me plz! 4. Which of the following contains the Shine-Dalgarno sequence i

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Explain me plz!

4. Which of the following contains the Shine-Dalgarno sequence in prokaryotes? b) 23S rRNA d) Shine-Dalgarno sequence is only used in eukaryotes 5. Which of the following is responsible for the peptidyl transferase activity of the a) 5S rRNA c) mRNA prokaryotic ribosome? a) 5S rRNA c) 28S rRNA b) 23S rRNA d) Small subunit of ribosome 6. Which factor is responsible for ribosomal translocation (movement)? a) EF-T b) EF-Tu c) IF-3 d) EF-G e) IF-2 7. W hich factor is responsible for bringing new charged tRNAs to the A site? c) IF-3 d) EF-G a) EF-T e) IF-2 EF-Tu

Explanation / Answer

Q.4- Ans (c) mRNA - The RNA sequence in the Shine Dalgarno sequence help to engage the ribosome to the mRna to initiate protein synthesis by aligning the ribosome with the stast codon.

Q.6- Ans (d) EF-G - The movement of million dalton complex ribosome is triggered by the universal elongation factor G and is known as translocation

Q.7- Ans (b) EF-Tu - The primary function of EF-Tu is to transport the correct aa-tRNA to the A site of the ribosome.

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