DNA REPLICATION QUIZ

cephalosporin

nalidixic acid

tetracycline

both (a) and (b)

5' to 3' direction

3' to 5' direction

3' to 3' direction

5' to 5' direction

DNA ligase

helicase

DNA polymerase

DNA gyrase

replication

none of these

excision repair

mismatch repair

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

DnaA

DnaC

all of these

DnaG

each chromosome contains multiple replicons

the eukaryotic replication machinery is 1000 times faster than the prokaryotes

eukaryotic DNA is always single stranded

the eukaryotes have more amount of DNA for replication

Transcription

Translation

Trasformation

Replication

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

Topoisomerases

DNA gyrase

Helicase

DNA ligase