DNA REPLICATION QUIZ

All of these

Taq DNA polymerase

T4 DNA ligase

Short fragment of DNA polymerase I

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

requires the presence of an enzyme separate from the DNA polymerases

occurs after the synthesis has been completed

occurs in prokaryotes but not eukaryotes

Occurs only when λ phase has infected E. coli

It occurs in bidirectional manner

It occurs in a unidirectional manner

Always uses T7 DNA polymerase when infected by T7 phage

at any stretch of DNA that is high in AT pairs

at the promoter

always at the same place

randomly on the chromosome

DNA gyrase

DNA ligase

Helicase

Topoisomerases

Transcription

Translation

Trasformation

Replication

cephalosporin

tetracycline

both (a) and (b)

nalidixic acid

excision repair

mismatch repair

none of these

replication

DNA polymerases

Helicases

Single-stranded binding proteins

Topoisomerases

10,000 bases per second

1,00 bases per second

1,000 bases per second

10 bases per second