Microbiology: An Evolving Science (Fourth Edition)
4th Edition
ISBN: 9780393615098
Author: John W. Foster, Joan L. Slonczewski
Publisher: W. W. Norton & Company
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Chapter 8, Problem 8RQ
Summary Introduction
To review:
The degeneracy of genetic code and the wobble in codon-anticodon recognition.
Introduction:
Genetic codes are used to interpret the information encoded within genetic material like DNA (deoxyribonucleic acid) or RNA (ribonucleic acid) into proteins. During protein synthesis, these codes define the mapping of codons which are tri-
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What could be the effect of a deletion, substitution or addition that alters the sequence of the stop codons?
a) What is a mutation in molecular terms? b) a mutation deletes a base in the genomic DNA discuss how that will affect the reading frame and expression product production.
Using the following list of codons describe, using diagrams etc., how information stored in
the DNA is translated into a peptide. Be sure to discuss all steps. In other words, use a diagram and give me sequences, transcription and translation steps. Show the sequences of the sense and the other DNA strand, the mRNA and the tRNA’s.
UUU -phenylalanine UCU -serine AUG –initiation/methionine
CUU -leucine ACU -threonine
GUU -valine UAA -Termination
The E site may not require codon recognition. Why?
Chapter 8 Solutions
Microbiology: An Evolving Science (Fourth Edition)
Ch. 8.1 - Prob. 1TQCh. 8.1 - Prob. 2TQCh. 8.1 - Prob. 3TQCh. 8.3 - Prob. 1TQCh. 8.3 - Prob. 2TQCh. 8.3 - Prob. 3TQCh. 8.3 - Prob. 4TQCh. 8.3 - Prob. 5TQCh. 8.3 - Prob. 6TQCh. 8.3 - Prob. 7TQ
Ch. 8.3 - Prob. 8TQCh. 8.6 - Prob. 1TQCh. 8 - Prob. 1RQCh. 8 - Prob. 2RQCh. 8 - Prob. 3RQCh. 8 - Prob. 4RQCh. 8 - Prob. 5RQCh. 8 - Prob. 6RQCh. 8 - Prob. 7RQCh. 8 - Prob. 8RQCh. 8 - Prob. 9RQCh. 8 - Prob. 10RQCh. 8 - Prob. 11RQCh. 8 - Prob. 12RQCh. 8 - Prob. 13RQCh. 8 - Prob. 14RQCh. 8 - Prob. 15RQCh. 8 - Prob. 16RQCh. 8 - Prob. 17RQCh. 8 - Prob. 1TQCh. 8 - Prob. 2TQCh. 8 - Prob. 3TQ
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Use the genetic code table. Which amino acid is coded for by only one codon sequence? Second Position U A G UUU Phe /F UCU UAU UGU UUC Tyr/Y Cys/C UCC UAC UGC Ser /s UUA Leu /L UCA UAA STOP UGA STOP UUG UCG UAG STOP UGG CUU CCU CAU CGU CỤC His / H Leu /L CC САС Pro / P CGC CUA ССА Arg/R CAA CGA CUG Gln /Q CCG CAG CGG AUU ACU AAU AGU AUC le /i ACC Asn / N Ser /S Thr/T AAC AGC AUA ACA AAA AGA AUG Met / M ACG Lys/K Arg/R AAG AGG GUU GCU GAU GGU GUC Asp/ D G Val /v GCC Ala / A GAC GGC GUA GCA Gly/G GAA GGA GUG GCG Glu /E GAG GGG valine serine threonine isoleucine methionine MacBook PrO G Search or type URL +, #3 Third Position SCAG UCAGU CAGU CA First Positionarrow_forwardExplain The mRNA codon of valine is: GUC UGG CCA TTGarrow_forwardState the DNA sequence that encodes the anticodon that recognizes the codon AAG, with 5’ and 3’ ends labeled.arrow_forward
- What does “Universality and Degeneracy” of the Genetic Code mean? State the significance of both the code’s Universality and Degeneracy.arrow_forwardWhat is the total size of the mature i.e. fully processed mRNA in nucleotides? How many amino acids would the encoded protein be? Assume that the N- terminal Met encoded by the AUG start codon, is NOT cleaved from the protein?arrow_forwardidentify all the amino acid-specifying codons in thegenetic code where a point mutation (a single basechange) could generate a nonsense codon.arrow_forward
- . a. What are all the transversions that can be made starting with the codon CGG?b. Which of these transversions will be missense? Canyou be sure?arrow_forwardWhen an intron is undergoing the first step in splicing, where is the first breakage of the phosphodiester backbone that occurs? (Explain)arrow_forwardDefine the terms codon and anticodon, and list three start and stop codons.arrow_forward
- Describe the process where a peptide chain is formen from a code embedded in a nucleic acid molecule. Name the process, which mavromolecule plays a central role and which nucleic acid molecule is involved? What is the codon and how is the codon involved? How is it ensured that correct amino acid and in the correct order are bonded together?arrow_forwardConsider the tryptophan codon 5′ - UGG - 3′ in the standard genetic code . Can a single base change in this codon create a synonymous mutation? Can a single base change in this codon create a nonsense codon?arrow_forwardExplain why a minimum of 32 tRNAs are required to translate the “standard” genetic code.arrow_forward
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