Modified Mastering Biology with Pearson eText -- Standalone Access Card -- for Campbell Biology (10th Edition)
10th Edition
ISBN: 9780321939050
Author: Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson
Publisher: PEARSON
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Chapter 17, Problem 2TYU
Which of the following is not true of a codon?
(A) It may code for the same amino acid as another codon.
(B) It never codes for more than one amino acid.
(C) It extends from one end of a tRNA molecule.
(D) It is the basic unit of the genetic code.
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What characteristic of the genetic code explains why a substitution mutation in a codon contained within a protein coding gene does not always result in a replacement of one amino acid for another?
In how many cases in the genetic code would it NOT be possible to know the amino acid specified by a codon if only the first two nucleotides of the codon are known?
Is it reasonable that codons for the same amino acid have one or two nucleotides in common? Why or why not?
Chapter 17 Solutions
Modified Mastering Biology with Pearson eText -- Standalone Access Card -- for Campbell Biology (10th Edition)
Ch. 17.1 - Prob. 1CCCh. 17.1 - What polypeptide product would you expect from a...Ch. 17.1 - Prob. 3CCCh. 17.1 - Prob. 4CCCh. 17.2 - MAKE CONNECTIONS In a research artide about...Ch. 17.2 - What enables RNA polymerase to start transcribing...Ch. 17.2 - Prob. 3CCCh. 17.3 - Prob. 1CCCh. 17.3 - How is RNA splicing similar to how you would watch...Ch. 17.3 - Prob. 3CC
Ch. 17.4 - What two processes ensure that the correct amino...Ch. 17.4 - Prob. 2CCCh. 17.4 - Prob. 3CCCh. 17.4 - Prob. 4CCCh. 17.4 - WH AT IF? In eukaryotic cells, mRNAs have been...Ch. 17.5 - What happens when one nucleotide pair is lost from...Ch. 17.5 - MAKE CONNECTIONS Individuals heterozygous for the...Ch. 17.5 - WHAT IF? DRAW IT The template strand of a gene...Ch. 17 - Describe the process of gene expression, by which...Ch. 17 - What are the similarities and differences in the...Ch. 17 - What function do the 5' cap and the poly-A tail...Ch. 17 - Prob. 17.4CRCh. 17 - What will be the results of chemically modifying...Ch. 17 - In eukaryotic cells, transcription cannot begin...Ch. 17 - Which of the following is not true of a codon? (A)...Ch. 17 - The anticodon of a particular tRNA molecule is (A)...Ch. 17 - Which of the following is not true of RNA...Ch. 17 - Which component is not directly involved in...Ch. 17 - Using Figure 17.6, identify a 5' 3' sequence of...Ch. 17 - Prob. 7TYUCh. 17 - Would the coupling of the processes shown in...Ch. 17 - Prob. 9TYUCh. 17 - Prob. 10TYUCh. 17 - Prob. 11TYUCh. 17 - Prob. 12TYUCh. 17 - Prob. 13TYU
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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
- The template strand of a double helical segment of DNA consists of the following sequence: 5’-GTAGCCTTAAGCGATCACCGTCCGTATTACTAGTGGCCAGACTCTTTTCACTCTCATGTATAGTTG-3’ What will be the overall anti-codon sequence in tRNA?arrow_forwardUAA is a stop codon. Why does the UAA sequence in the segment of mRNA 5′-G-C-A-U-G-G-A-C-C-C-C-G-U-U-A-U-U-A-A-A-C-A-C-3′not cause protein synthesis to stop?arrow_forwardWhat is meant by the universality of the genetic code?arrow_forward
- Which amino acid(s) have the most codons? Which amino acid(s) have the fewest codons? Can you think of a reason why multiple codons code for certain amino acids but other amino acids are coded for by very few codons?arrow_forwardWhy is DNA and not any other macromolecule represents the genetic code?arrow_forwardA codon that specifies the amino acid Gly undergoes a single-base substitution to become a nonsense mutation. In accord with the genetic code, is this mutation a transition or a transversion? At which position of the codon does the mutation occur?arrow_forward
- How many codons are needed to specify one amino acid?arrow_forwardHow can the 4 nucleotides present in DNA code for the 20 different amino acids found in proteins? How many bases would be needed in a codon if there were five RNA bases instead of four?arrow_forwardDefine the following terms: genetic code, codon, and anticodon. What is the relationship among the bases in DNA, the codons of mRNA, and the anticodons of tRNA?arrow_forward
- Why don’t cells need one tRNA for each codon?arrow_forwardWhy are 3 nucleotides needed for a codon? Because one nucleotide is redundant Because there are 3 different aminoacetyl TRNA synthetase enzymes Because there are 64 amino acids to code for, and 4X4X4 = 64 Because there are 20 amino acids, 3 nucleotides provides enough combinations to code for 20 amino acidsarrow_forwardWhy must tRNA molecules have both unique structural features and common structural features?arrow_forward
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