Remaining Time: 1 hour, 07 minutes, 09 seconds.* Question Completion Status:A Moving to another question will save this response.Question 25Multiple Choice Question (suggested time - between 1 and 2 minutes):Processing of primary mRNA transcripts in eukaryotic cells DOES NOT involve which of the foillowing?O A. Attachment of a long poly(A) sequence at the 3'-end.O B, Joining of coding sequences (exons) togetherOC. Excision of non-coding sequences (introns).O D. Addition of the 7-methylguanosine cap at the 5-end.O E. Charging of an amino acid residue to the CCA-endA Moving to another question will save this response.yp

Ans:-C 1.What end does the poly A tail attach to? 3′ end A poly (A) tail is added to the 3′ end of…

Answered: Processing of primary mRNA transcripts…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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Similar questions

Which one of the following options is NOT a step in RNA processing? Addition of the 5’ G cap Addition of the 3’ poly A tail Splicing to remove exons and connect the retained introns Splicing to remove introns and connect the retained exons
Introns are often very large and the cell has devoted mechanisms of eliminating them once they are excised from the pre-mRNA. Following intron excision, what specific ribonucleolytic enzymes or complexes contribute to eliminating the intron RNA immediately after it is excised from the pre-mRNA? Briefly describe the role of each step/enzyme and how it affects its RNA substrate
You are studying the effect of various mutations in this gene. The AG sequence (3’splice site) that is within intron 2 [adjacent to Exon 3] has been changed to a CC. What would the resulting mRNA transcript look like? Draw a similar diagram as above and indicate the nucleotide lengths on the mRNA transcript.
Which of the following is false? Options: tRNAs are heavily processed but in a manner that is different than mRNAs mRNAs are protected from degradation by modifications at the 5' and 3' end rRNAs are all cleaved from a larger pre-rRNA precursor Group II splicing requires protein and RNA to excise intron sequences methylation of histone 3 at K4 results is mostly associated with activated transcription
A synthetic RNA molecule with the sequence GCGCGCGCGCGCGCGCGCGCGCGCGCGCGC is mixed into the cell lysate which contains all the components for protein synthesis. Based on the information on the genetic code, write down the amino acid sequence of the protein products produced from the synthesized RNA.
MRNAs and eukaryotic cells receive different modifications than those in prokaryotic cells, because eukaryotic mRNAs must be able to accomplish different things. Which of the following describes events that are necessary for an mRNA to be expressed in a eukaryotic cell, but are not necessary for mRNAs in a prokaryotic cell? select all that apply A) introns must be removed from the eukaryotic mRNA B) The mRNA must leave from the nucleus C) transcription factors must bind to the mRNA in a eukaryotic cell after it is transcribed D) A ribsome must bind to the mRNA .
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A diagram of a gene is shown below. Normally, exons 1, 2, and 3 are present in the mature mRNA. (shown in attatched image) A mutation occurred at the 5’ splice site of exon 1 as shown by the star such that the spliceosome cannot bind to this location during mRNA processing of the pre-mRNA into the mature mRNA. Which of the following is/are a possible result of this mutation? (select all that apply) a)The pre-mRNA transcribed from this gene sequence will be longer than normal. b)The protein translated from this mRNA will be a different length than the normal protein. c)The mature mRNA will be longer. d)The mature mRNA will be shorter.
The diagram, shown in attatched image, shows an mRNA that is alternatively spliced. The alternatively spliced variant contains Exon 1, Exon 2, and Exon 4. Indicate below if a splice site is used, blocked by a modifying protein such that the spliceosome must choose a different site, or skipped to make this alternatively spliced variant.

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