Campbell Biology in Focus
Campbell Biology in Focus
3rd Edition
ISBN: 9780134710679
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Rebecca Orr
Publisher: PEARSON
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Chapter 13, Problem 9TYU
Summary Introduction

Introduction:

The mechanism of DNA repair involves a group of proteins like DNA polymerase and DNA ligase after the digestion of enzyme with nucleases. The nuclease enzyme degrades and breaks the DNA chromatin in various fragments. This degradation causes the conversion of adenine to hypoxanthine nucleotide. The DNA polymerase enzyme helps in the formation of the DNA double strands and the DNA ligase enzyme joins the various nucleotides to form the complete strand of DNA.

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The spontaneous loss of amino groups from adenine in DNA results in hypoxanthine, an uncommon base, opposite thymine. What combination of proteins cold repair such damage? a. nuclease, DNA polymerase, DNA ligase b.telomerase, primase, DNA polymerase c. telomerase, helicase, single-stranded binding protein d.DNA ligase, replication for proteins, adenylyl cyclase
Which enzyme adds RNA nucleotides to mark the starting point for the synthesis of a new DNA strand? A. DNA polymerase I B. DNA polymerase III C. primase D. helicase The spontaneous loss of amino groups from adenine in dna results in hypoxanthine an uncommon base opposite thymine. what combination of proteins could repair such damage? A. telomerase, primase, DNA polymerase B. nuclease, DNA polymerase, DNA ligase C. telomerase, helicase, single-strand binding protein D. DNA ligase, replication fork proteins, adenylyl cyclase A section of DNA has the following sequence of nitrogenous bases: CGATTACAG. Which of the following sequence would be produced as a result of transcription? A. CGTUUTCTG B. GCTAATGTC C. CGAUUACAG D. GUAAUGUC
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