In E.coli, which enzyme synthesizes the RNA primer for Okazaki fragments? DnaG DnaC all of these DnaA TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following statements on replication in E.coli is correct? Always uses T7 DNA polymerase when infected by T7 phage It occurs in bidirectional manner It occurs in a unidirectional manner Occurs only when λ phase has infected E. coli TRUE ANSWER : ? YOUR ANSWER : ?
Both strands of DNA serve as templates concurrently in mismatch repair none of these excision repair replication TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following enzymes unwind short stretches of DNA helix immediately ahead of a replication fork? Topoisomerases Helicases Single-stranded binding proteins DNA polymerases TRUE ANSWER : ? YOUR ANSWER : ?
The replication of chromosomes by eukaryotes occurs in a relatively short period of time because the eukaryotes have more amount of DNA for replication each chromosome contains multiple replicons eukaryotic DNA is always single stranded the eukaryotic replication machinery is 1000 times faster than the prokaryotes TRUE ANSWER : ? YOUR ANSWER : ?
The enzyme that catalyzes the synthesis of DNA is called helicase DNA polymerase DNA ligase DNA gyrase TRUE ANSWER : ? YOUR ANSWER : ?
During DNA replication in prokaryotes, synthesis begins on the circular chromosome at the promoter at any stretch of DNA that is high in AT pairs randomly on the chromosome always at the same place TRUE ANSWER : ? YOUR ANSWER : ?
During which of the following process a new copy of a DNA molecule is precisely synthesized? Replication Transcription Translation Trasformation TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following repairs nicked DNA by forming a phosphodiester bond between adjacent nucleotides? DNA ligase Topoisomerases Helicase DNA gyrase TRUE ANSWER : ? YOUR ANSWER : ?
The synthesis of DNA by DNA polymerase occurs in the 3' to 3' direction 3' to 5' direction 5' to 3' direction 5' to 5' direction TRUE ANSWER : ? YOUR ANSWER : ?