Campbell Biology in Focus (2nd Edition)
2nd Edition
ISBN: 9780321962751
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece
Publisher: PEARSON
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Question
Chapter 14, Problem 11TYU
Summary Introduction
To explain:
The evolutionary pattern regarding the coding of most amino acids by a set of similar codons.
Introduction:
The unit of genetic code, which has three
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EVOLUTION CONNECTION Most amino acids are coded forby a set of similar codons (see Figure 17.6). Propose at least oneevolutionary explanation to account for this pattern.
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Chapter 14 Solutions
Campbell Biology in Focus (2nd Edition)
Ch. 14.1 - MAKE CONNECTIONS In a research article about...Ch. 14.1 - What polypeptide product would you expect from a...Ch. 14.1 - DRAW IT The template strand of a gene contains the...Ch. 14.2 - What is a promoter? Is it located at the upstream...Ch. 14.2 - What enables RNA polymerase to start transcribing...Ch. 14.2 - WHAT IF? Suppose X-rays caused a sequence change...Ch. 14.3 - Given that there are about 20,000 human genes, how...Ch. 14.3 - How is RNA splicing similar to how you would watch...Ch. 14.3 - WHAT IF? What would be the effect of treating...Ch. 14.4 - What two processes ensure that the correct amino...
Ch. 14.4 - Discuss the ways in which rRNA structure likely...Ch. 14.4 - Describe how a polypeptide to be secreted is...Ch. 14.4 - WHAT IF? DRAW IT Draw a tRNA with the anticodon...Ch. 14.5 - What happens when one nucleotide pair is lost from...Ch. 14.5 - Prob. 2CCCh. 14.5 - WHAT IF? DRAW IT The template strand of a gene...Ch. 14 - In eukaryotic cells, transcription cannot begin...Ch. 14 - Prob. 2TYUCh. 14 - The anticodon of a particular tRNA molecule is A....Ch. 14 - Prob. 4TYUCh. 14 - Which component is not directly involved in...Ch. 14 - Prob. 6TYUCh. 14 - Prob. 7TYUCh. 14 - Prob. 8TYUCh. 14 - Fill in the following table: Type of RNA Functions...Ch. 14 - SCIENTIFIC INQUIRY Knowing that the genetic code...Ch. 14 - Prob. 11TYUCh. 14 - FOCUS ON INFORMATION Evolution accounts for the...Ch. 14 - SYNTHESIZE YOUR KNOWLEDGE Some mutations result in...
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- . The genetic code is thought to have evolved to maximize genetic stability by minimizing the effect on protein function of most substitution muta- tions (single-base changes). We will use the six arginine codons to test this idea. Consider all of the substitutions that could affect all of the six arginine codons. (a) How many total mutations are possible? (b) How many of these mutations are "silent," in the sense that the mutant codon is changed to another Arg codon? (c) How many of these mutations are conservative, in the sense that an Arg codon is changed to a functionally similar Lys codon?arrow_forwardPlease explainarrow_forwardPlease help I am a bit confused what the answer is since they all seem rightarrow_forward
- Taking start and stop codon into consideration, if we have an mRNA sequence with 30 nucleotides, how many amino acids would be found in the resulting polypeptide (protein chain)? Why?arrow_forward1. What is the sequence of the peptide that would result following translation with a ribosome? Write your answer like this Met Ala Gly...... 2. What mutation(s) would change the peptide to Met Asp Asn Gly Leu Gly ? Use the codon numbers to help describe where the mutation is locatedarrow_forwardIm stuck on this question:(arrow_forward
- I keep getting this maked wrong, if you distinguish my mistake and explain to me in a deeper discribtion what is happening in translation? In my texxbook it is explaing that mrna goesto rrna and rrna is the maker of the amino... or am I misunderstanding?arrow_forwardPlease asaparrow_forwardTGTCTAGTTGGCAATTGTCCTAGCCATACTGTarrow_forward
- Please help a bit confusedarrow_forwardUsing the Genetic Code Table in Figure 1.3, what is the proper sequence of amino acids in the polypeptide chain based from the given codons of MRNA (3' AAU GCC AGU GGU 5')? * U UUU Phe UCU) UC UCA UCG UAU] UAC Tyr UAA Stop UGA Stop A UAG Stop UGG Trp G UGU U UUC) UGC Cys Ser UUA Leu UUGJ CU) CCU CAU1 CGU His CUC CAC CAA CGC CC Leu CCA Pro Arg CUA CGA A Gin CUG) CG CAG CGG G AUU) ACU) AGU AAU1 Asn AAC, Thr AAA1 U AGC }Ser č A G AUC lle ACC A AUA J ACA AGA AUG Met ACG, AAG}Lys AGG Arg GGU GUU) GUC Val GCU) GCC GCA GCG J GAU1 Asp GACI Ala GGC GGA GGG ) G GUA Gly GAA1 GAG) A Glu GUG) G Figure 1.3 Alanine, Serine, Glycine, Asparagine Serine, Glycine, Asparagine, Alanine Glycine, Asparagine, Alanine, Serine Asparagine, Alanine, Serine, Glycinearrow_forwardPlease explain why it is useful that our RNA is read in codons. Imagine a hypothetical scenario where there are 95 amino acids and only 6 nucleotides available. Calculate how many nucleotides per codon would be required to code for all 95 amino acids. Show and explain your work.arrow_forward
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