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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Textbook Question
Chapter 14.4, Problem 1CC
What two processes ensure that the correct amino acid is added to a growing polypeptide chain?
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What two processes ensure that the correct amino acidis added to a growing polypeptide chain?
Shown below is an internal fragment of a polypeptide. If this polypeptide were growing, onto which end would the next amino acid be added?
a) Onto the right
b) Onto the left
Shown below is an internal fragment of a polypeptide. If this polypeptide were growing, onto which end would the next amino acid be added?
a) onto the right
b) onto the left
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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- What is the function of Transpeptidase?arrow_forwardWhich of the following correctly describes the 3 amino acids that are most likely to undergo phosphorylation? a) Serine, threonine, tyrosine b) Cysteine, tryptophan, tyrosine c) Serine, tyrosine, cysteine d) Tyrosine, asparagine, serinearrow_forwardQ) a) A protein gains a mutation of a surface exposed residue. The mutation is Arg --> Leu. Based on the sequence of the protein when it folds the Leu remains on the surface of the protein. What is the change in chemical characteristic of the amino acid caused by this mutation? b) Briefly explain any entropic consequences of this mutation. (2 sentences MAX) c) What might happen in order to overcome these entropic consequences and how would that affect the cell? (1-2 sentences)arrow_forward
- Given this short polypeptide: Met-Ala-Gly-Ser A) Which is the amino terminal amino acid? B) How many amino acids are in this polypeptide? C) How many peptide bonds are in this polypeptide? D) Which amino acid has the smallest side chain? E) Which amino acid contains sulfur?arrow_forwardWhat are the 3 steps of amino acid degradation:arrow_forwardWhat results in the alteration of amino acid sequences during polypeptide formation in protein synthesis? A defective polypeptide may arise because of a change in its amino acid sequence Despite the change in amino acid sequence, the polypeptide formed will always be functional and will never cause a disease. The cell will have no other choice but to revert the faulty polypeptide into amino acids to undo its work. The nucleus, by means of its powerful enzymes, will eventually destroy the damaged protein so that it will not wreak havoc in the cell.arrow_forward
- Draw the structure of the α-keto acid formed by the transamination of each amino acid: (a) tyrosine; (b) asparagine.arrow_forwardWhat is the significance of the positioning of the amino acid side chains and alpha carbons as you move in the n-terminal to the c-terminal direction?arrow_forwardDraw the peptide formed between asparagine and histidine. H,N- -CH-C-OH H,N-CH-ċ-OH ČH2 ČH, N° NH2 -NH +arrow_forward
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