Concepts of Genetics (12th Edition)
12th Edition
ISBN: 9780134604718
Author: William S. Klug, Michael R. Cummings, Charlotte A. Spencer, Michael A. Palladino, Darrell Killian
Publisher: PEARSON
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Chapter 13, Problem 21PDQ
Messenger RNA molecules are very difficult to isolate in bacteria because they are rather quickly degraded in the cell. Can you suggest a reason why this occurs? Eukaryotic mRNAs are more stable and exist longer in the cell than do bacterial mRNAs. Is this an advantage or a disadvantage for a pancreatic cell making large quantities of insulin?
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You are given 3 tubes of RNA and asked by your supervisor to clone the gene encoding the proinsulin C-peptide that will be used later to produce insulin. The first tube contains purified mRNA isolated from pancreatic β-cells from a patient in a post-absorptive state. The second tube contains purified mRNA isolated from pancreatic α-cells from a patient during absorptive state. The third tube contains purified mRNA isolated from pancreatic β-cells from a patient during absorptive state.
1) Which tube from the three is the most appropriate to use and why?
2) Describe the primary procedure (key steps no details) that you will follow to clone the C-peptide gene from the RNA above into the only vector you have, a pUC expression vector cut open using EcoR1 which has a 5¢-recognition site and a 3¢- HindIII in the MCS?
3) How can you guarantee a high expression of your protein in any expression vector?
You are given 3 tubes of RNA and asked by your supervisor to clone the gene encoding the proinsulin C-peptide that will be used later to produce insulin. The first tube contains purified mRNA isolated from pancreatic β-cells from a patient in a post-absorptive state. The second tube contains purified mRNA isolated from pancreatic α-cells from a patient during the absorptive state. The third tube contains purified mRNA isolated from pancreatic β-cells from a patient during the absorptive state.
provide answers to the following questions?
1) Which tube from the three is the most appropriate to use and why?
2) Describe the primary procedure(key steps no details) that you will follow to clone the C-peptide gene from the RNA above into the only vector you have, a pUC expression vector cut open usingEcoR1which has a 5¢-recognition site and a 3¢- HindIII in the MCS?
3) How can you guarantee a high expression of your protein in any expression vector?
You are given 3 tubes of RNA and asked by your supervisor to clone the gene encoding the proinsulin C-peptide that will be used later to produce insulin. The first tube contains purified mRNA isolated from pancreatic β-cells from a patient in a post-absorptive state. The second tube contains purified mRNA isolated from pancreatic α-cells from a patient during absorptive state. The third tube contains purified mRNA isolated from pancreatic β-cells from a patient during absorptive state. In not morethan 2 pages provide answers for the following questions?
1) Which tube from the three is the most appropriate to use and why?
2) Describe the primary procedure (key steps no details) that you will follow to clone the C-peptide gene from the RNA above into the only vector you have, a pUC expression vector cut open using EcoR1 which has a 5-recognition site and a 3- HindIII in the MCS?
3) How can you guarantee a high expression of your protein in any expression vector?
Chapter 13 Solutions
Concepts of Genetics (12th Edition)
Ch. 13 - In a mixed heteropolymer experiment using...Ch. 13 - When repeating copolymers are used to form...Ch. 13 - The following represent deoxyribonucleotide...Ch. 13 - Prob. 1CSCh. 13 - A 30-year-old woman was undergoing therapy for...Ch. 13 - A 30-year-old woman was undergoing therapy for...Ch. 13 - HOW DO WE KNOW? In this chapter, we focused on the...Ch. 13 - CONCEPT QUESTION Review the Chapter Concepts list...Ch. 13 - Assuming the genetic code is a triplet, what...Ch. 13 - The mRNA formed from the repeating tetranucleotide...
Ch. 13 - In studies using repeating copolymers, AC ......Ch. 13 - In a coding experiment using repeating copolymers...Ch. 13 - Prob. 7PDQCh. 13 - When the amino acid sequences of insulin isolated...Ch. 13 - Prob. 9PDQCh. 13 - Why doesnt polynucleotide phosphorylase (Ochoas...Ch. 13 - Refer to Table 13.1. Can you hypothesize why a...Ch. 13 - Predict the amino acid sequence produced during...Ch. 13 - A short RNA molecule was isolated that...Ch. 13 - A glycine residue is in position 210 of the...Ch. 13 - Refer to Figure 13.7 to respond to the following:...Ch. 13 - Most proteins have more leucine than histidine...Ch. 13 - Define the process of transcription. Where does...Ch. 13 - Prob. 18PDQCh. 13 - Describe the structure of RNA polymerase in...Ch. 13 - Prob. 20PDQCh. 13 - Messenger RNA molecules are very difficult to...Ch. 13 - Present an overview of various forms of...Ch. 13 - One form of posttranscriptional modification of...Ch. 13 - Describe the role of two forms of RNA editing that...Ch. 13 - Substitution RNA editing is known to involve...Ch. 13 - Prob. 26ESPCh. 13 - Prob. 27ESPCh. 13 - Prob. 28ESPCh. 13 - Shown here are the amino acid sequences of the...Ch. 13 - The genetic code is degenerate. Amino acids are...Ch. 13 - M. Klemke et al. (2001) discovered an interesting...Ch. 13 - Recent observations indicate that alternative...Ch. 13 - Isoginkgetin is a cell-permeable chemical isolated...
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- You are given 3 tubes of RNA and asked by your supervisor to clone the gene encoding the proinsulin C-peptide that will be used later to produce insulin. The first tube contains purified mRNA isolated from pancreatic β-cells from a patient in a post-absorptive state. The second tube contains purified mRNA isolated from pancreatic α-cells from a patient during absorptive state. The third tube contains purified mRNA isolated from pancreatic β-cells from a patient during absorptive state. In not more than 2 pages (using 1.5 line space of Arial or Times New Roman fonts) provide answers for the following questions? ( please answer all part 1, 2 and 3 ) 1) Which tube from the three is the most appropriate to use and why? 2) Describe the primary procedure (key steps no details) that you will follow to clone the C-peptide gene from the RNA above into the only vector you have, a pUC expression vector cut open using EcoR1 which has a 5′-recognition site and a 3′- HindIII in the MCS? 3) How…arrow_forwardThe following is the only intron sequence of a gene that will be excised during the maturation of the mRNA. But it is not spliced in some tissues, where alternative splicing pattern is seen. Will the amino acid of its protein product following this sequence change? Explain with an example. ATAAGCCAGACTCAGCAarrow_forwardyou are given 3 tubes of RNA and asked by your supervisor to clone the gene encoding the proinsulin C-peptide that will be used later to produce insulin. The first tube contains purified mRNA isolated from pancreatic β-cells from a patient in a post-absorptive state. The second tube contains purified mRNA isolated from pancreatic α-cells from a patient during absorptive state. The third tube contains purified mRNA isolated from pancreatic β-cells from a patient during absorptive state. In not more than 2 pages provide answers for the following question? Describe the primary procedure (key steps no details) that you will follow to clone the C-peptide gene from the RNA above into the only vector you have, a pUC expression vector cut open using EcoR1 which has a 5¢-recognition site and a 3¢- HindIII in the MCS?arrow_forward
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