DNA Replication Which of the following enzymes unwind short stretches of DNA helix immediately ahead of a replication fork? DNA polymerases Topoisomerases Helicases Single-stranded binding proteins DNA polymerases Topoisomerases Helicases Single-stranded binding proteins 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 possesses both 5'-3' and 3'-5' exonuclease activity? DNA polymerase III None of these Taq DNA polymerase Kornberg enzyme DNA polymerase III None of these Taq DNA polymerase Kornberg enzyme ANSWER DOWNLOAD EXAMIANS APP
DNA Replication Which of the following statements on replication in E.coli is correct? 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 It occurs in a unidirectional manner Always uses T7 DNA polymerase when infected by T7 phage It occurs in bidirectional manner ANSWER DOWNLOAD EXAMIANS APP
DNA Replication During which of the following process a new copy of a DNA molecule is precisely synthesized? Replication Trasformation Translation Transcription Replication Trasformation Translation Transcription ANSWER DOWNLOAD EXAMIANS APP
DNA Replication Proofreading activity to maintain the fidelity of DNA synthesis is a function of the 3'-5' exonuclease activity of the DNA polymerases occurs in prokaryotes but not eukaryotes requires the presence of an enzyme separate from the DNA polymerases occurs after the synthesis has been completed is a function of the 3'-5' exonuclease activity of the DNA polymerases occurs in prokaryotes but not eukaryotes requires the presence of an enzyme separate from the DNA polymerases occurs after the synthesis has been completed ANSWER DOWNLOAD EXAMIANS APP
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