Bundle: Biology: The Unity and Diversity of Life, Loose-leaf Version, 14th + LMS Integrated for MindTap Biology, 2 terms (12 months) Printed Access Card
14th Edition
ISBN: 9781305775480
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Chapter 9, Problem 3DAA
Summary Introduction
To determine: The cells that best survived at 10-6 grams per liter concentration of RIP.
Introduction: Ribosome-inactivating proteins (RIPs) inactivate the ribosomes and prevent protein synthesis in a cell. It removes adenine base from ribosomal rRNA that forms the part of binding site for proteins involved in GTP. This results in inability of ribosome to bind to these proteins and protein synthesis stops. The toxic RIPs have a domain that makes them enter into another that interferes with ribosome. They have antiviral and anticancer properties, and used to design drugs for HIV and cancer.
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E. coli ribonuclease H1 is an enzyme that catalyzes the hydrolysis of phosphodiester bonds in RNA. Its proposed mechanism involves a 'carboxylate relay,' as shown below. His124 Asp70 || -HN-CH-C -HN-CH-C- CH2 CH2 c=0 RNA substrate HN H. H. (1) Fill the blanks. In the reaction scheme above, His124 acts as a ( ). The purpose of this relay system is to deprotonate the water molecule (II) so that it becomes a better ( :0
Chapter 9 Solutions
Bundle: Biology: The Unity and Diversity of Life, Loose-leaf Version, 14th + LMS Integrated for MindTap Biology, 2 terms (12 months) Printed Access Card
Ch. 9 - A chromosome contains many different genes that...Ch. 9 - A binding .site for RNA polymerase is called a ___...Ch. 9 - An RNA molecule is typically ______; a DNA...Ch. 9 - RNAs form by_____; proteins form by ________. a....Ch. 9 - The main function of a DNA molecule is to ________...Ch. 9 - The main function of an mRNA molecule is to ___ ....Ch. 9 - Prob. 7SQCh. 9 - Prob. 1DAACh. 9 - Prob. 2DAACh. 9 - Prob. 3DAA
Ch. 9 - Prob. 4DAACh. 9 - Prob. 8SQCh. 9 - Anticodons pair with ___ . a. mRNA codons b. DNA...Ch. 9 - Up to ______ amino adds can be encoded by an mRNA...Ch. 9 - Prob. 11SQCh. 9 - Prob. 12SQCh. 9 - Prob. 13SQCh. 9 - Energy that drives translation is provided mainly...Ch. 9 - Match the terms with the best description. __...Ch. 9 - Researchers are designing and testing antisense...Ch. 9 - An anticodon has the sequence GCG. What amino acid...Ch. 9 - Each position of a codon can be occupied by one of...Ch. 9 - Prob. 4CTCh. 9 - Translate the .sequence of bases in the previous...Ch. 9 - Bacteria use the.same stop codons as eukaryotes....
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