DNA REPLICATION QUIZ

DnaC

DnaG

DnaA

all of these

Kornberg enzyme

DNA polymerase III

None of these

Taq DNA polymerase

Topoisomerases

Helicase

DNA ligase

DNA gyrase

DNA polymerases

Single-stranded binding proteins

Topoisomerases

Helicases

tetracycline

both (a) and (b)

nalidixic acid

cephalosporin

Replication

Transcription

Trasformation

Translation

at the promoter

at any stretch of DNA that is high in AT pairs

randomly on the chromosome

always at the same place

10 bases per second

1,00 bases per second

10,000 bases per second

1,000 bases per second

is a function of the 3'-5' exonuclease activity of the DNA polymerases

occurs after the synthesis has been completed

occurs in prokaryotes but not eukaryotes

requires the presence of an enzyme separate from the DNA polymerases

It occurs in a unidirectional manner

It occurs in bidirectional manner

Occurs only when λ phase has infected E. coli

Always uses T7 DNA polymerase when infected by T7 phage