Becker's World of the Cell (9th Edition)
9th Edition
ISBN: 9780321934925
Author: Jeff Hardin, Gregory Paul Bertoni
Publisher: PEARSON
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Chapter 19, Problem 19.4PS
Summary Introduction
To determine: The original amino acid if in a gene there are three missense mutations affecting the same gene. The first mutations result in the substitution of arginine (Arg), the second results in the substitution of tyrosine (Tyr) and third results in the substitution of glutamine (Gln).
Introduction: Missense mutation is the type of mutation that is caused due substitution of one amino acid with the other. A change of a single
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AAAGAGAAAAGAAUA
to AAAGAGAAAUGAAUA.
Suppose the codon sequence
has a single base pair mutation
If the old protein sequence was Lys-Glu-Lys-Arg-Ile, what will be the new sequence encoded by the mutant gene?
(Use the 3-letter amino acid abbreviations with hyphens and no spaces in between, i.e. Ser-Asn-Tyr-Leu-Pro.)
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Question 8
Review translation. Match the term and its description. Each term can only be used once.
This site holds the tRNA that carries the growing polypeptide chain
| Choose )
This site holds the tRNA that carries the next amino acid to be
| Choose J
added to the chain
This site is the exit site, where discharged tRNAS leave the
[ Choose )
ribosome
Initiation, elongation and termination
| Choose J
>
Translation. Write the anti-codon sequence of the MRNA transcript. Translate the
MRNA transcript into peptide sequence using both the 3 letter abbreviation and 1 letter
abbreviation.
ANTI-CODON
3'
5'
SEQUENCE
AMINO ACID
N-
C-
SEQUENCE (3 letter terminus
Abbreviation)
Terminus
AMINO ACID
N-
C-
SEQUENCE (1 letter terminus
Abbreviation)
Terminus
Chapter 19 Solutions
Becker's World of the Cell (9th Edition)
Ch. 19 - Suppose a tRNA has the anticodon 3-CGU-5. What two...Ch. 19 - Kanamycin is an antibiotic that binds to bacterial...Ch. 19 - You are working in a lab to identify new alleles...Ch. 19 - Suppose you are using GFP fusion proteins to study...Ch. 19 - Enzymes can undergo allosteric regulation or...Ch. 19 - Suppose you use molecular biology techniques to...Ch. 19 - Prob. 19.1PSCh. 19 - Tracking a Series of Mutations. The following...Ch. 19 - Prob. 19.3PSCh. 19 - Prob. 19.4PS
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- tRNA enzyme. Any given aminoacyl-tRNA synthetase: a. Attaches the amino acid to the 5′-end '5end of the tRNA b. Always recognizes only one specific tRNA c. Recognizes all tRNA molecules d. Forms an ester linkage between the amino acid and the tRNAarrow_forwardAlpha polypeptide (ADH1A). Give a detailed description of its role in the disease. Describe the impact of the disease on society.Describe a way in which your gene can be manipulated to treat the disease. Assume you can make any changes to the protein product and describe specifically how it will affect its interaction with other molecules.arrow_forwardComplements. The sequence of part of an mRNA is 5'-AUGGGGAACAGCAAGAGUGGGGCCCUGUCCAAGGAG-3' 5'-AUGGGGAACAGCAAGAGUGGGGCCCUGUCCAAGGAG-3' What is the sequence of the DNA coding strand? Of the DNA template strand?arrow_forward
- Be sure to answer all parts. Write a possible mRNA sequence that codes for each peptide. a. His-Cys-Tyr-Val-Ser 5¹- b. Phe-Val-Thr-Tyr-Glu 5'- 5'- c. Trp-Phe-Asn-Gln -3' U -3' с Table 26.2 The Genetic Code-Triplets in Messenger RNA First Base (5' end) -3' U UUU UUC UUA UUG CUU CUC CUA CUG AUL Phe Phe Leu Leu Leu Leu Leu Leu la C UCU UCC UCA UCG CCU CCC CCA CCG Second Base A UAU UAC UAA UAG CAU CAC CAA CAG Ser Ser Ser Ser Pro Pro Pro Pro Tyr 55 Tyr Stop Stop His His Gin Gin G UGU UGC UGA UGG CGU CGC CGA CGG Cys Cys Stop Trp Arg Arg Arg Arg Third Base (3¹ ond) DUAC DU AG с А Аarrow_forwardCorrect! The Leu codon is changed to a nonsense codon by a single-base substitution How many different ways can the LEU codon be changed into the nonsense mutation? 362110arrow_forwardHi, help please. Which of the following is TRUE regarding RNA editing? a .The coding sequence is altered in the chromosome b. More than one answer choice is correct c. The mRNA is altered by Guide RNAs d. Translation first takes place, following by altering of the coding sequencearrow_forward
- Multiple choice A. The role of tRNA in translation is to be translated by a ribosome. incorporate into a polypeptide chain. attach amino acids to a polypeptide chain. carry amino acids to the ribosome. Multiple choice B. Translation continues until the ribosome falls off the end of the RNA. the ribosome encounters a transcriptional termination site. the ribosome encounters a stop codon. the ribosome falls off the DNA.arrow_forwardTranscription. Using strand 1 of the DNA molecule as a template, transcribe a messenger RNA molecule (a.k.a. mRNA transcript). Strand 1 3’ End TTG CTT CAC CTT GCG CGC CCG CGC TAA TTG 5’ end mRNAarrow_forwardRNA sequence. ate 3' and 5' ends on BOTH strands ate which strand served as the TEMPLATE strand and which ING strandarrow_forward
- I am more confused. how about we start from begining, you post answers on here, and then we go from there? 1. Identify the open reading frame in the following DNA sequence, the protein that this gene encodes for, its function, and the source. 2. "Look carefully at the DNA sequence and identify the start site for transcription" 3. Click on the DNA sequence from the start site of transcription, select all of the sequence, and copy the sequence. Go to the National Center for Biotechnology Information (NCBI) website http://www.ncbi.nlm.nih.gov/. Click on BLAST on the right-hand side under “Popular Resources.” BLAST is a program that will allow you to find the protein sequence for the DNA sequence (gene) you submit. Next click on blastx (translated nucleotide protein). Paste the DNA sequence into the box under “Entry Query Sequence.” Scroll down and click BLAST. The search may take a few seconds; the page will keep updating until the search is completed. You do not need to enter any…arrow_forwardFigure out the mutation. You will need the codon table to answer this question. Wild type DNA sequence at 5' end of the coding region and the corresponding wild type protein sequence of its amino end: ACA TAA ATG TCT CAG TAT GGG TAT GAG AAC GAC ATT CAC ATA ATT ... Met Ser Gln Tyr Gly Tyr Glu Asn Asp Ile His Ile Ile ... This protein sequence matches the DNA sequence exactly in the wild type. A mutant is found that has the following protein sequence: Met Ser Gln Tyr Gly Thr Phe Thr. What is the likely mutation? between T4 and A5, insert G between C13 and A14, insert C G9 -> del between G20 and G31 -> del T24 -> A T22 -> Garrow_forwardHello , please help me with this question. I am struggling with naming the Amino Acid sequence from the RNA sequence . thank you ,arrow_forward
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