Which of the following processes occur on the mRNA during and/or after transcription but before translation. Select ALL that apply. Addition of 3' poly A tail Addition of 5' cap Removal of exons Removal of 3' tail Removal of introns Binding of elongation factors Loading of ribosome ✔Export from nucleus

Which of the following processes occur on the mRNA during and/or after transcription but before translation. Select ALL that apply. Addition of 3' poly A tail Addition of 5' cap Removal of exons Removal of 3' tail Removal of introns Binding of elongation factors Loading of ribosome ✔Export from nucleus

Biology Today and Tomorrow without Physiology (MindTap Course List)

5th Edition

ISBN:9781305117396

Author:Cecie Starr, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Christine Evers, Lisa Starr

Chapter7: Gene Expression And Control

Section: Chapter Questions

Problem 15SQ

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Given the following mRNA, write the double-stranded DNA segment that served as the template. Indicate both the 5 and the 3 ends of both DNA strands. Also write out the tRNA anticodons and the amino acid sequence of the protein encoded by the mRNA message. DNA: mRNA: 5-CCGCAUGUUCAGUGGGCGUAAACACUGA-3 protein: tRNA:
Given the following tRNA anticodon sequence, derive the mRNA and the DNA template strand. Also, write out the amino acid sequence of the protein encoded by this message. tRNA: UAC UCU CGA GGC mRNA: protein: How many hydrogen bonds would be present in the DNA segment?
Which of the following is/are typically removed from pre-mRNA during nuclear processing in eukaryotes? (a) upstream leader sequences (b) poly-A tail (c) introns (d) exons (e) all the preceding
Which of these statements is true about the elongation step of translation? The growing polypeptide chain is transferred from the P site RNA to the A site RNA OThe MRNA moves through the ribosome OThe new amino acid is transferred from the A site tRNA to the growing polypeptide chain in the P site The small ribosomal subunit detaches and reattaches every time a new amino acid is incorporated into the growing polypeptide
Which of these statements is true about the elongation step of translation? The growing polypeptide chain is transferred from the P site RNA to the A site RNA The MRNA moves through the ribosome The new amino acid is transferred from the A site RNA to the growing polypeptide chain in the P site The small ribosomal subunit detaches and reattaches every time a new amino acid is incorporated into the growing polypeptide
Derive the amino acid sequence that is coded for by each of the following mRNA sequence. 5' CAA GAG GUA UCC UAC AGA 3' 5' GUC AUC UGG AGG GGC AUU 3' 5' CUA UGC AGU AGG ACA CCC
Arrange the following components of translation in the approximate order in which they would appear or be used in prokaryotic protein synthesis: 70S initiation complex 30S initiation complex release factor 1 elongation factor G initiation factor 3 elongation factor Tu fMet-tRNAi fMet
Which of the following events would NOT result in ribosomes stalling on an MRNA during translation? 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 oxxYgen from water to the carboxyl group of the peptidyl-tRNA 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? The MRNA in a given region is very highly folded, and the ribosome stalls because the RNA structure blocks its movement. O The correct ERNA 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
If the sequence of the coding strand in a transcription unit is writtenas follows:5' -ATGCATGCATGCATGCATGCATGCATGC-3'Write down the sequence of mRNA
Arrange the following components of translation in the approximate order in which they would appear or be used in prokaryotic protein synthesis: 70S initiation complex 30S initiation complex release factor 1 elongation factor G initiation factor 3 elongation factor Tu fMet-tRNAifMet
A mRNA has the following sequence and direction: 5’-AUGUCAACCUAA-3’ What would be the anticodon sequences formed from this mRNA during the translation process?