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
Occurs only when λ phase has infected E. coli
It occurs in bidirectional manner

ANSWER DOWNLOAD EXAMIANS APP

DNA Replication
Proofreading activity to maintain the fidelity of DNA synthesis

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

ANSWER DOWNLOAD EXAMIANS APP

DNA Replication
The replication of chromosomes by eukaryotes occurs in a relatively short period of time because

the eukaryotes have more amount of DNA for replication
the eukaryotic replication machinery is 1000 times faster than the prokaryotes
each chromosome contains multiple replicons
eukaryotic DNA is always single stranded

ANSWER DOWNLOAD EXAMIANS APP