DNA Replication Which of the following statements on replication in E.coli is correct? It occurs in a unidirectional manner Always uses T7 DNA polymerase when infected by T7 phage It occurs in bidirectional manner Occurs only when λ phase has infected E. coli It occurs in a unidirectional manner Always uses T7 DNA polymerase when infected by T7 phage It occurs in bidirectional manner Occurs only when λ phase has infected E. coli ANSWER DOWNLOAD EXAMIANS APP
DNA Replication DNA gyrase is inhibited by both (a) and (b) tetracycline nalidixic acid cephalosporin both (a) and (b) tetracycline nalidixic acid cephalosporin ANSWER DOWNLOAD EXAMIANS APP
DNA Replication Which of the following repairs nicked DNA by forming a phosphodiester bond between adjacent nucleotides? Topoisomerases Helicase DNA gyrase DNA ligase Topoisomerases Helicase DNA gyrase DNA ligase ANSWER DOWNLOAD EXAMIANS APP
DNA Replication Which of the following lacks 3'-5' exonuclease activity? All of these Taq DNA polymerase T4 DNA ligase Short fragment of DNA polymerase I All of these Taq DNA polymerase T4 DNA ligase Short fragment of DNA polymerase I ANSWER DOWNLOAD EXAMIANS APP
DNA Replication Which of the following possesses both 5'-3' and 3'-5' exonuclease activity? DNA polymerase III Taq DNA polymerase None of these Kornberg enzyme DNA polymerase III Taq DNA polymerase None of these Kornberg enzyme ANSWER DOWNLOAD EXAMIANS APP
DNA Replication Proofreading activity to maintain the fidelity of DNA synthesis occurs after the synthesis has been completed occurs in prokaryotes but not eukaryotes is a function of the 3'-5' exonuclease activity of the DNA polymerases requires the presence of an enzyme separate from the DNA polymerases occurs after the synthesis has been completed occurs in prokaryotes but not eukaryotes is a function of the 3'-5' exonuclease activity of the DNA polymerases requires the presence of an enzyme separate from the DNA polymerases ANSWER DOWNLOAD EXAMIANS APP
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