Genetics: Analysis and Principles
5th Edition
ISBN: 9780073525341
Author: Robert J. Brooker Professor Dr.
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 12.4, Problem 1COMQ
Which of the following are examples of RNA modification?
a. Splicing
b. Capping with 7-methylguanosine
c. Adding a polyA tail
d. All of the above
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Students have asked these similar questions
What is an example of a post translational modification?
a. Poly (a) tail
b. 5' capping
c. Removal of introns
d. All of the above
Which of the following types of posttranscriptional modification is for mRNA only?
a.splicing
b.capping
c.methylation
d.trimming
Which post-transcriptional modification is NOT shared by all eukaryotic RNAs?
a. Modifying bases
b. Removing RNA stretches
c. Adding of terminal sequences
d. all of the above
Chapter 12 Solutions
Genetics: Analysis and Principles
Ch. 12.1 - 1. Which of the following base sequences is used...Ch. 12.1 - Prob. 2COMQCh. 12.1 - Which of the following statements is false? All...Ch. 12.2 - With regard to a promoter, a transcriptional start...Ch. 12.2 - Prob. 2COMQCh. 12.2 - 3. Sigma factor is needed during which stage(s) of...Ch. 12.2 - A uracil-rich sequence occurs at the end of the...Ch. 12.3 - Which RNA polymerase in eukaryotes is responsible...Ch. 12.3 - Prob. 2COMQCh. 12.3 - Prob. 3COMQ
Ch. 12.3 - Prob. 4COMQCh. 12.4 - Which of the following are examples of RNA...Ch. 12.4 - A ribozyme is a. a complex between RNA and a...Ch. 12.4 - Prob. 3COMQCh. 12.4 - Prob. 4COMQCh. 12.5 - 1. Which of the following is not a key difference...Ch. 12 - Genes may be protein-encoding genes that encode...Ch. 12 - Prob. 2CONQCh. 12 - Prob. 3CONQCh. 12 - Prob. 4CONQCh. 12 - 5. Mutations in bacterial promoters may increase...Ch. 12 - Prob. 6CONQCh. 12 - 7. In Chapter 9, we considered the dimensions of...Ch. 12 - 8. A mutation within a gene sequence changes the...Ch. 12 - Prob. 9CONQCh. 12 - At the molecular level, describe how factor...Ch. 12 - Prob. 11CONQCh. 12 - What is the complementarity rule that governs the...Ch. 12 - 13. Describe the movement of the open complex...Ch. 12 - 14. Describe what happens to the chemical bonding...Ch. 12 - Prob. 15CONQCh. 12 - Prob. 16CONQCh. 12 - Prob. 17CONQCh. 12 - Mutations that occur at the end of a gene may...Ch. 12 - If the following RNA polymerases were missing from...Ch. 12 - 20. What sequence elements are found within the...Ch. 12 - 21. For each of the following transcription...Ch. 12 - 22. Describe the allosteric and torpedo models for...Ch. 12 - Which eukaryotic transcription factor(s) shown in...Ch. 12 - 24. The initiation phase of eukaryotic...Ch. 12 - A eukaryotic protein-encoding gene contains two...Ch. 12 - 26. Describe the processing events that occur...Ch. 12 - Prob. 27CONQCh. 12 - Prob. 28CONQCh. 12 - Prob. 29CONQCh. 12 - Prob. 30CONQCh. 12 - 31. In eukaryotes, what types of modifications...Ch. 12 - Prob. 32CONQCh. 12 - 35. The processing of ribosomal RNA in eukaryotes...Ch. 12 - Prob. 34CONQCh. 12 - Prob. 35CONQCh. 12 - After the intron (which is in a lariat...Ch. 12 - Prob. 1EQCh. 12 - Prob. 2EQCh. 12 - Prob. 3EQCh. 12 - 2. Chapter 21 describes a technique known as...Ch. 12 - Prob. 5EQCh. 12 - As described in Chapter 21 and in experimental...Ch. 12 - Prob. 7EQCh. 12 - Prob. 8EQCh. 12 - 1. Based on your knowledge of introns and pre-mRNA...Ch. 12 - Discuss the types of RNA transcripts and the...
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- Which of the following is a function of the 7-methylguanosine cap? a. Exit of mRNA from the nucleus b. Efficient splicing of pre-mRNA c. Initiation of translation d. All of the abovearrow_forwardExplain how each of the following processes complicates the concept of colinearity. a. Trans-splicing b. Alternative splicing c. RNA editingarrow_forwardDuring translation, ____________ is the step in which new t-RNA is attracted to the ribosome (a) the formation of the open promoter complex (b) codon recognition (c) peptide bond formation (d) translocation (e) none of the abovearrow_forward
- a. The reading frame DNA sequence is b. The mRNA sequence is c. The polypeptide sequence is a.The mutated polypeptide sequence is b.What kind of mutation was produced?arrow_forwardWhich of the following is a function of a restriction endonuclease? a. It cleaves a DNA molecule at a specific site. b. It cleaves a DNA molecule at random locations. c. It removes specific codons from an mRNA molecule. d. It removes specific exons from an mRNA molecule.arrow_forwardWhich of the following is NOT a component of the 30S initiation complex? A. EF-Tu and EF-Ts B. f-met-tRNA C. initiation factors D. mRNAarrow_forward
- how does the E.coli RNA polymerase find the gene's promoter to be transcribed? A. the TATA sequence. B. the sigma factor C. the apoenzyme D. the -35 sequencearrow_forwardWhich of the following describes the effect of a frameshift mutations? * A. all mRNA codons change B. some, but not all , mRNA codons change C. there is no change in mRNA codons D. no correct response Consider the following DNA base sequence 3' TTA ATA 5'. what dipeptide is formed if a DNA point mutation converts ATA to ATG? * A. Cys-Phe B. Tyr-Tyr C. Phe-Leu D. Ser-Tyr Consider the following mRNA base sequence 5' ACC CAC 3', what dipeptide is formed if a point mutation converts ACC to ACU? * A. Thr-His B. Thr-Thr C. His- Ile D. Ile- Asp Which of the following statements below is incorrect? * A. the genetic code is overlapping B. the genetic code is universal C. degenerate codon specify the same amino acids…arrow_forwardIf a mutation deletes the promoter in a eukrayotic gene, which of the following most accurately describes its consequence? A. There will be no mRNA or polypeptide made. B. The mRNA will be made but no polypeptide is made. C. The mRNA will not be processed properly. D. Nothing will happen. It is a silent mutation.arrow_forward
- Which of the following is an example of a post-translational modification? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a Splicing out introns! b Attachment of a poly-A tail! c Splicing out inteins! d Recruitment of 31 Mediator proteins that assemble around TATA.arrow_forwardOf the following, which is a modification made to the pre-mRNA of eukaryotes before translation? a. The 5’ end receives a poly-A tail b. All of the above c. The 3’ end receives a cap d. Introns are cut out and exons are spliced togetherarrow_forwardThe mature m-RNA is capped by which of the following heterocyclic bases (or which of the following heterocyclic bases are present on the cap of a mature m-RNA? a. 5-methylcytosine b. 5-methyguanine c. 7-methylguanine d. 7-methylcytosinearrow_forward
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