Which of the following events would NOT result in ribosomes stalling on an MRNA during translation? O The MRNA in a given region is very highly folded, and the ribosome stalls because the RNA structure blocks its movement. O The correct tRNA is scarce because it is not transcribed very much in the prevailing conditions. The ribosome stalls while waiting for one of the scarce tRNAS to diffuse into the A site. O the release tactor enters the A site, decodes a stop codon and transfers an oxygen from water to the carboxyl group of the peptidyl- RNA in the P site, causing stalling. O Starvation for amino acids will reduce the amount of amino-acylated (charged) tRNA the ribosome will stall while waiting for a charged tRNA to enter the A site to decode the next codon

Which of the following events would NOT result in ribosomes stalling on an MRNA during translation? O The MRNA in a given region is very highly folded, and the ribosome stalls because the RNA structure blocks its movement. O The correct tRNA is scarce because it is not transcribed very much in the prevailing conditions. The ribosome stalls while waiting for one of the scarce tRNAS to diffuse into the A site. O the release tactor enters the A site, decodes a stop codon and transfers an oxygen from water to the carboxyl group of the peptidyl- RNA in the P site, causing stalling. O Starvation for amino acids will reduce the amount of amino-acylated (charged) tRNA the ribosome will stall while waiting for a charged tRNA to enter the A site to decode the next codon

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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The synthesis of a protein requires that the amino acids that constitute the growing polypeptide chain be covalently linked to the amino acid attached to the tRNA at the aminoacyl site of the ribosome. Which of the following catalyses this reaction? Options: the aminoacyl tRNA synthetase eEF2 eEF1-GTP a large ribosomal RNA the initiator tRNA met
As you continue the translation process you will reach to the stop Codon. The stop codon brings in the release factor (a protein) that will cleave the polypeptide attached to the tRNA at the "P" site and that terminates translation: Glu Trp lle Large Ribosomal Subunit Cys His Small Ribosomal Subunit Translation of RNA into Proteins E L IRNA Ribosome Stop 5 H DAQN ALM. RNA Amino Ac Large Ribosomal Subunit Go ahead and repeat the translation process but for Transcription translation Sequence II. Once you have formed the polypeptide from Sequence II select which amino acid is in the C-terminus. Pro Small Ribosomal Subunit Translation of RNA into Proteins E ERNA 6644955-56- Stop Ribosome
E channel Charged tRNA Anticodon for START Initiating factors Release factors m III III exit site for an uncharged stem of tRNA UAC located on tRNA's anticodon arm proteins that help mRNA bind to a small and large ribosomal subunit to start translation a tRNA that contains its appropriate amino acid attached to the acceptor arm bind to STOP codons and result in a hydrolysis reaction that creates a drop of water that halts translation
Which statement about nonsense mediated decay (NMD) is false? O detects MRNAS containing premature termination codons and degrades them depends on the presence of exon junction complex (EJC) attached next to splice sites O It occurs during the first (“pioneer") round of translation O it is triggered by the ribosome-TRNA complex
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During DNA replication a mutation occurs that reuskt in the following chnage in the corresponding mRNA sequence: UGG----> UGA. This mutation lies downstream of the start codon. Explain how this mutation would affect translation of polypeptide from this mRNA transcript.
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