Answered: Correct! The Leu codon is changed to a…

Name: Correct! The Leu codon is changed to a nonsense codon by a single-base
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Description: Correct! 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? 362110

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Biology

Correct! 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? 362110

Biochemistry

6th Edition

ISBN:9781305577206

Author:Reginald H. Garrett, Charles M. Grisham

Publisher:Reginald H. Garrett, Charles M. Grisham

Chapter30: Protein Synthesis

Section: Chapter Questions

Problem 6P

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48 Second letter If any single nucleotide is deleted from the DNA sequence shown below, what type of mutation is this? UUU U UUC UUA UCU Phe UCC UAU UGU Cys ANTISENSE 5' GGACCCTAT3' UAC Tyr UGC UAA Stop UGA Stop UAG Stop UGG Trp Ser UCA Leu UUGL" UCG CUU CU CAU) His CAC) CGU CGC CGA Arg CUC C Leu Pro CAA1 Gin CAG) CUA CCA CUG CG CGG AAU AAC Asn AGC AAA AAG Lys AGG Arg AUU ACU AGU Ser AUC lle ACC Thr AUA ACA AGA AUG Met ACG GCU GCC GUU GAU] GGU GUC Val GAC Asp GGC Ala Gly GUA GCA GAA GGA Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a FRAMESHIFT SILENT NONSENSE MISSENSE Third letter First letter
Given the following codons and their corresponding amino acids: UUU-Phenylalanine GAA- Glutamate CAA- Glutamine AAU- Asparagine AAC- Asn AAA- Lysine UCU- Serine GGA-Glycine ACC-Threonine AUG- Met/ START codon CCU- Proline GUU- Valine UAU-Tyrosine UAA- STOP AGG- Arginine AUU- Isoleucine CAU- Histidine GCU- Alanine UGU-Cysteir GAU-Asparti CUA-Leucine UGG-Tryptol CGU-Arginin Box 1: Show the mRNA sequence which codes for the short peptide, lys-ala-phe- leu. Include what should come before and after this short message. Don't leave any spaces between the letters. Box 2: Show the tRNA anticodon sequence that would line up with the mRNA strand from Box 1. Don't leave any spaces between the letters. Box 3 & 4: Show the DNA base sequence that would be found in the DNA double helix which carries the gene for this peptide. Give the coding strand sequence in Box 3 and template strand sequence in Box 4. Don't leave any spaces between the letters. Box 5: What if there was a frameshift at leucine…
Given the following diagram of how protein AWESOME1 binds to it's target DNA, describe the potential effects of each of the 5 mutations shown below. The wild-type sequence of a helix #1 is also shown in the blue box, and all the mutations are in helix #1 (see numbers for identifying particular residues). a helix #1 R(1)-V-I-L-Y-F-W-I-M-Y-F-S-H-Y-W-R(16) #1 Predict the consequence of the following mutations: 1) Arg(1) to Glu 2) Arg(1) to Ala 3) Phe(6) to lle 4) Trp(7) to Phe 5) Met(9) to Pro in
Sickle-cell hemoglobin differs from regular hemoglobin in just one amino acid. Normal hemoglobin is created from the codon GAA, which codes for glutamic acid while sickle-cell hemoglobin has the codon GUA, which codes for valine. This is an example of what type of mutation? * O Insertion O Silent mutation O Deletion O Substitution mutation
G T-A what's called a FRAMESHIFT mutation, meaning the reading "frame" čhanging the amino acid sequence from this point forward G-Cc A-u SUBSTITUTION (one base is substituted for another) --- If a substitution changes the amino acid, it's called a MISSENSE mutation --- If a substitution does not change the amino acid, it's called a SILENT mutation --- If a substitution changes the amino acid to a "stop." it's called a NONSENSE mutation Complete the boxes below. Classify each as Deletion, Insertion or Substitution AND as either frameshift, missense, silent or nonsense (Hint: Deletion & Insertion will always be frameshif Original DNA Sequence: TACA C C T T G G C G A CGAC T ... MRNA Sequence: Au GduGilAAdk GcuadiGA stait -TrP Pen-frg-cys stop Amino Acid Sequence: Mutated DNA Sequence #1 TA C»A(T C•T T G•G C GªA C G' A C T.. What's the mRNA sequence? AUGOUTAGOAAC•CECOUGIC•UEIA amino acid sequence? Will there likely be effects? yes (Circle th metootop What type of mutation is this? NONSense…
Second letter C A UUU Phenyl- UUC alanine UCU UCC UAU UAC UGU UGC Tyrosine Cysteine Serine UCA UCG UAA Stop codon UAG Stop codon UGA Stop codon UGG Tryptophan UUA A Leucine UUG CCU ССС CAU CAC CUU CGU CGC Histidine C CUC C CUA Leucine Proline Arginine CCA СCG CGA CGG A CAA CAG CUG Glutamine AGU AGC AUU AAU ААС ACU Asparagine Serine AUC Isoleucine A AUA ACC АСА Threonine AAA AGA Methionine; start codon ACG Lysine Arginine AUG AAG AGG U GUU GUC GUA GCU GCC GCA GAU Aspartic GAC acid GGU GGC GGA GGG Valine Alanine Glycine GAA Glutamic GAG acid GUG GCG G Given the codon UCA in the first exon of a gene, which change is most likely to result in a nonsense mutation? A transversion of A to U Change of nucleotide in the third position Change of nucleotide in the first position A transition of A to G Change of nucleotide in the second position First letter Third letter
41. The following 9 TRNAS have anticodon loop regions that base pair with the mRNA in the ribosome. Using your knowledge of tRNA-MRNA base pairing and the genetic code chart (+lecture slides), indicate the MRNA codon message being read by the ribosome as well as the1-letter amino acids that is generated. Anticodon Anticodon Anticodon Anticodon 4 Anticodon Anticodon 6. 2 5'-IAG-3' 5'-UAU-3' 5'-АAА-3' 5'-CUC-3' 5'-GAU-3' 5'-AGA-3' codon MRNA 5'-__-3' 5' 3' 5' 3' 5' 3' 5' 3' 5' 3' 1 letter amino acid Anticodon Anticodon Anticodon 8 7 5'-CCG-3' 5'-GUU-3' 5'-CGC-3' codon 5'-__-3' 5' 3' 5' _3' mRNA 1 letter amino acid
Basisse triplet nommer/ Base triplet number 1 2 3 4 5 6 7 Menslike DNA-volgorde / Human DNA sequence ATG TGT CCA TTA ACG TGC ACA Name the codon that is formed from base triplet number 2 on the DNA sequence. Write down the names of the amino acids coded for by base triplets 6 and 7. Write down the full names Draw the structure of the dipeptide Thr-Cys at pH7. Clearly indicate the following: the amino terminus (N) the carboxyl terminus (C) a peptide bond an α-carbon atom If a mutation changes base triplet 1 from ATG to ATA, why will this not change the protein formed? E.The following is a sequence of base triplets in DNA F.If guanine, found in the first base…
Write the sequence of the mRNA molecule synthesized from a DNA template strand having the sequence 5'-ATTACAGGCGGT-3' 5'- UAAUGUCCGCCA Incorrect Write the amino acid sequence encoded by the mRNA base sequence 5'-GAGUUAGUUUGUAAGUGC-3' Assume the reading frame starts at the 5' end. Refer to the codon table . Amino acid sequence: Glu-Leu-Val-Cys-Lys-Cys What is the sequence of the polypeptide formed on addition of poly(UUAC) to a cell-free protein-synthesizing system that does not require a start codon? Enter an amino acid sequence of four amino acids using the three-letter abbreviations. Polypeptide sequence: Poly( -3' Glu-Leu-Val-Cys-Lys-Cys
5’-CCTAGACCATAACAT-3’ What happens to the amino acid sequence above as a result of each of the following mutations in the DNA: Substitution of A with T at position 4? Addition of T between positions 8 and 9? Substitution of A with T at position 11? Deletion of A at position 12? Substitution of C with T at position 7? State the type of mutation for each of the base changes indicated.
oseg 1su Third Base ne following questions refer to Figure 17.2, a table of codons. Second Base nnn UUC UAU non Tyr UCC UAC UGA Stop dois UGG UUA JOS UCA UAA ne UUG UCG UAG di dois CCU CAU CGU CUC SIH CGC CCC CAC CUA no7 CGA CCA Old CAA CCG CAG CGG AAU AUC JOS USV AGC ACC AAC AUA ACA AAA AGA AUG Met or Start Lys ACG AAG GCU GAU dsy GGC GUC GCC GAC Ala Gly GUA GCA GAA GGA GUG GCG GAG GGG Figure 17.2 A peptide has the sequence NH2-phe-pro-lys-pro-gly-phe-pro-COOH. Which Of the following sequences in the coding strand Of the DNA could equal the code for this peptide? a. 5' GGG-AAA-TTT-AAA-CCC-ACT-GGG b. 5' TTT-CCC-AAA-CCC-GGG-TTT-CC c. 3' AUG-AAA-GGG-TTT-CCC-AAA-GGG d. 3' UUU-CCC-AAA-GGG-UUU-CCC e. 5' TTT-CCC-AAA-GGG-TTT-CCC
Silent mutations that occur in DNA are quite common in living cells and usually involve no effects on phenotype 1)What is the codon usage bias?