Genetics: Analysis and Principles
6th Edition
ISBN: 9781259616020
Author: Robert J. Brooker Professor Dr.
Publisher: McGraw-Hill Education
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Chapter 12.2, Problem 2COMQ
Summary Introduction
Introduction:
Sequence models called consensus sequence models are used till date for sequencing base sequences. Consensus sequences being concise are used to mark the position of a base as a motif in the sequence. For example, Escherichia coli consists of a repetitive base sequence called the consensus sequence located at -10 sequence of promotor called (pribnow box) and at -35 sequence (TATATA box).
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Is each of the following mutations a silent, missense, nonsense, orframeshift mutation? The original DNA strand is 5′–ATGGGACTAGATACC–3′. (Note: Only the coding strand is shown; the firstcodon is methionine.)A. 5′–ATGGGTCTAGATACC–3′B. 5′–ATGCGACTAGATACC–3′C. 5′–ATGGGACTAGTTACC–3′D. 5′–ATGGGACTAAGATACC–3′
The sequence of the coding strand of a bacterial gene is given below. The positions of the first nine bases are numbered for your convenience. A missense mutation was introduced at position seven where the C was changed to a T resulting a mutant gene.
123456789
5'- ATGGCCCGACCGCAACTTTTCCGAGCTCTGGTGTCTGCGCAGTGACC-3
a. Write the template DNA (complementary strand) sequence for the wild type gene above
b. Write the DNA sequence of the mutant gene (Both DNA strands)
c. Write the sequence of mRNA produced from the mutant gene
d. Write the sequence of the mutant protein using the codon usage table provided in the end of this document.
give the amino acids specified by the following bacterial mRNA sequences. a. 5′ –AUGUUUAAAUUUAAAUUUUGA–3′ b. 5′ –AGGGAAAUCAGAUGUAUAUAUAUAUAUGA–3′ c. 5′ –UUUGGAUUGAGUGAAACGAUGGAUGAAAG AUUUCUCGCUUGA–3′ d. 5′ –GUACUAAGGAGGUUGUAUGGGUUAGGGG ACAUCAUUUUGA–3′
Chapter 12 Solutions
Genetics: Analysis and Principles
Ch. 12.1 - 1. Which of the following base sequences is used...Ch. 12.1 - Prob. 2COMQCh. 12.2 - 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. 3COMQCh. 12.3 - Prob. 4COMQ
Ch. 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 - Prob. 1CONQCh. 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 - Prob. 33CONQCh. 12 - 34. Figure 12.21 shows the products of alternative...Ch. 12 - 35. The processing of ribosomal RNA in eukaryotes...Ch. 12 - Prob. 36CONQCh. 12 - Prob. 37CONQCh. 12 - After the intron (which is in a lariat...Ch. 12 - Prob. 1EQCh. 12 - 2. Chapter 21 describes a technique known as...Ch. 12 - Prob. 3EQCh. 12 - As described in Chapter 21 and in experimental...Ch. 12 - Prob. 5EQCh. 12 - Prob. 6EQCh. 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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- The BNA sequence below is transcribed from left to right (the partner/coding strand is shown). Using this sequence, write the sequence of the polypeptide that results from this gene. Be sure to appropriately label the ends of the molecule. 5'-ATGCACGGCGACTAG-3' Second letter A UAU Tyr UAC First letter U P с > < A G U UUU UUC Phe UUA UUG CUU CUC CUA CUG L GUU GUC GUA GUG Leu Leu AUU AUC lle AUA AUG Met Val C UCU UCC UCA UCG CCU CCC CCA CCG ACU ACC ACA ACG GCU GCC GCA GCG Ser Pro Thr Ala Cys UAA Stop UGA Stop A Trp UAG Stop UGG CAC His CGU J CGC CAA I CGA Gin CAGG CGG AAA 1 AAG Lys UGU UGC AAU Asn AGC} AAC GAC Asp GAA GAGGIU For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). BIUS Paragraph V Arial G 1 AGA 1 AGG GGU GGC GGA GGG Arg Ser Arg Gly V DCAG DCA DOA UCAG Third letter 10pt < Av V IX Q ... O WORDS POWERED BY TINYarrow_forwardBelow is a segment of DNA that depicts an entire gene. Please match the letter to the correct gene elements. A B C D E F 3' ||||| A C D ✓ [Choose ] control elements +1 site holoenzyme sigma factor 3' UTR E apoenzyme 5' UTR coding region RNA polymerase promoter consensus sequence [Choose ] B F A 5'arrow_forward1. (a) What will be the newly synthesized DNA from the template given? DNA Template 3 - CGGATGCCCGTATAC -5 3 - GCCTACGGGCATATG -5 5 - GCCTACGGGCATAAG -3 5 - GCCTACGGGCATATG -3 3 - CGGATGCCCGTATAC -5 (b) Which is the DNA template given if the mRNA is 5 - CGGAUGCCCGUAUACGUA -3 ? 3 - GCCTACGGGCATATGGTA -5 5 - GCCTACGGGCATAAGGAT -3 5 - GCCTACGGGCATATGCAT -3 3 - CGGATGCCCGTATACCTA -5arrow_forward
- mRNA sequence of A gene Write the amino acid sequence of the gene A. 5’ AAACUGUGACUGAACCUCAAACCCCAAACCAGCCCGAGGAGAACCACAUUCUCCCAGGGA CCCAGGGCGGGCCGUGACCCCUGCGGCGGAGAAGCCUUGGAUAUUUCCACUUCAGAAGCCUACUGGGGAAGGCUGAGGGGUCCCAGCUCCCCACGCUGGCUGCUGUGCAGAUGCUGGACGACAGAGCCAGGAGGGAGGCCGCCAAGAAGGAGAAGGUAGAGCAGAUCCUGGCAGAGUUCCAGCUGCAGGAGGAGGACCUGAAGAAGGUGAUGAGACGGAUGCAGAAGGAGAUGGACCGCGGCCUGAGGUAGAAGCCGCUGGGGCUUGGGGCU-3’arrow_forwardA portion of the coding sequence of a cloned gene is shown here:5΄–GCCCCCGATCTACATCATTACGGCGAT–3΄3΄–CGGGGGCTAGATGTAGTAATGCCGCTA–5΄This portion of the gene encodes a polypeptide with the aminoacid sequence alanine–proline–aspartic acid–leucine–histidine–histidine–tyrosine–glycine–aspartic acid. Using the method ofsite- directed mutagenesis, a researcher wants to change the leucinecodon into an arginine codon, using an oligonucleotide that is19 nucleotides long. What is the sequence of the oligonucleotidethat should be used? Designate the 5′ and 3′ ends of the oligonucleotidein your answer. Note: The mismatch should be in the middleof the oligonucleotide, and a 1-base mismatch is preferableover a 2- or 3-base mismatch. Use the bottom strand as the templatestrand for this site-directed mutagenesis experiment.arrow_forwardThe following sequences of DNA would be synthesized using 5′-CAGTTCGGA-3′ as a template: * 3′-AGGCTTGAC-4′ 3′-TCCGAACTG-5′ 3′-GTCAAGCCT-5′ 3′-CAGTTCGGA-5′arrow_forward
- Suppose a single-nucleotide polymorphism occurred in the original strand to make the change shown below. Would this affect the resulting protein? Explain. This is the original strand TGG CGA GAG GGG AGC AGC TGG TAT CGC TGG GCC CAA AGG TCT TCA GGG AAT GCC This is the strand with the SNP. (The change is shown in red.) TGG CGA GAG GGG AGC AGC TAG TAT CGC TGG GCC САА AGG TCT TCA GGG AAT GCC Suppose a different single-nucleotide polymorphism occurred in the original strand to make the change shown below. Would this affect the resulting protein? Explain. This is the original strand AGG TCT TCA GGG AAT GCC TGG CGA GAG GGG AGC AGC TGG TAT CGC TGG GCC САА This is the mutated strand. (The change is shown in red). AGG TCT TCA GGG AAT GCC TGG CGA GAG GGA AGC AGC TGG TAT CGC TGG GCC CAAarrow_forwardFor the below sequence, where the +1 site is in bold underline and the +10 and -10 sites are also labeled, what are the first 3 nucleotides of the RNA transcribed from this sequence? +1 5.10 +10 3 GAGCGACATAATACGATTAT 5' AUA 3' 5' AAU 3' 5' UAU 3' 5' UUA 3' 5' CUA 3'arrow_forwardBelow is a sequence of DNA. 5'-ttaccgataattctctctcccctcttccatgattctgattaaagaaggcgagaacgaaactatttgttaatacc-3' How many "reading frames" can be identified for this sequence? How many "open reading frames" can be identified for this sequence? What is the frame of the longest ORF?arrow_forward
- The template strand of wild- type gene A is shown below. On the space provided, type the translation product of wild-type gene A (use three- letter abbreviation for the amino acids; use - to indicate a peptide bond). 5' TCAACGACTCTACCCTTTGCAAGAGGGCAT 3'arrow_forwardWhat mRNA base sequences are complementary to the following DNA template sequences? Be sure to label the 5′ and 3′ ends of the complementary sequences.(a) 5′CAT GCT CTA CAG 3′ (b) 3′TAT TAG CGA CCG 5′arrow_forwardIn one form of thalassemia, the mutation of a single base from G to A generates a new 3' splice site that is farther upstream from the normal site. The normal and mutated sequences show the sense DNA strands of a normal and thalassemic patient. 5' CCTATTGGTCTATTTTCCACCCTTAGGCTGCTG 3' 5' CCTATTAGTCTATTTTCCACCCTTAGGCTGCTG 3' 3' end of mutated intron New start of reading frame Normal 3' end of intron What is the amino acid sequence of the extra segment of protein synthesized in a thalassemic patient that results from the aberrant splicing? Use the codon table and write the peptide sequence using three-letter amino acid abbreviations separated by hyphens. amino acid sequence: Pro-The-Ser-Leu-Phe-Ser-Thr-Leu-Arg-Leu-Leu Incorrectarrow_forward
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