topic: translation Can someone please help me answer the questions above and exp

Question

topic: translation

Can someone please help me answer the questions above and explain why did you pick that answer?

Thanks

·During termination of translation in prokaryotes A. a helicase unwinds the mRNA from the growing peptide B. the ribosomes peptidyl transferase activity converts to hydrolyze the peptide from the tRNA in the P site C. release factors recognize sense codons D. GTP is required for the tRNA to move from the P to E sites E. recogniation of the stop codon causes a pause in translation which allows for small and large subunits of the ribosome to disassociate. Which site in the Ribosome only encounters 1 type of tRNA: the deacylated form? A. A-site B. P-site C. E-site D. T-site E. None of the above The primary energy source in prokaryotic translation is A. GTP B. dGTF C. ATP D. dATP E. requires no energy

Explanation / Answer

Ans-1) E as the stop codons are not recognized by any of the tRNAs.therefore no aminoacyl tRNA reaches the A site. Released factors are activated and cause dissociation of both the subunits of ribosome. Ans-2) C the de acylated free tRNA of the P site slips to E site and from there to the outside of ribosome with the help of G factor. Ans-3) A GTP is the source of energy during prokaryotic translation. Ans-4)C proteasome are the protein complexes which are used to degrade unneeded or damaged protein by proteolysis. Ans-5) D reverse transcriptase catalysed the synthesis of DNA from RNA so it is RNA dependent DNA polymerase.

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.