DNA Replication Which of the following statements on replication in E.coli is correct? It occurs in a unidirectional manner Occurs only when λ phase has infected E. coli It occurs in bidirectional manner Always uses T7 DNA polymerase when infected by T7 phage It occurs in a unidirectional manner Occurs only when λ phase has infected E. coli It occurs in bidirectional manner Always uses T7 DNA polymerase when infected by T7 phage ANSWER DOWNLOAD EXAMIANS APP
DNA Replication Which of the following enzymes unwind short stretches of DNA helix immediately ahead of a replication fork? Topoisomerases DNA polymerases Single-stranded binding proteins Helicases Topoisomerases DNA polymerases Single-stranded binding proteins Helicases ANSWER DOWNLOAD EXAMIANS APP
DNA Replication Proofreading activity to maintain the fidelity of DNA synthesis 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 occurs after the synthesis has been completed ANSWER DOWNLOAD EXAMIANS APP
DNA Replication The enzyme that catalyzes the synthesis of DNA is called DNA ligase DNA gyrase helicase DNA polymerase DNA ligase DNA gyrase helicase DNA polymerase ANSWER DOWNLOAD EXAMIANS APP
DNA Replication Which of the following possesses both 5'-3' and 3'-5' exonuclease activity? Taq DNA polymerase Kornberg enzyme None of these DNA polymerase III Taq DNA polymerase Kornberg enzyme None of these DNA polymerase III ANSWER DOWNLOAD EXAMIANS APP
DNA Replication During DNA replication in prokaryotes, synthesis begins on the circular chromosome randomly on the chromosome at the promoter at any stretch of DNA that is high in AT pairs always at the same place randomly on the chromosome at the promoter at any stretch of DNA that is high in AT pairs always at the same place ANSWER DOWNLOAD EXAMIANS APP
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