DNA Structure And Repair Flashcards
1
Q
Pyrimidines
A
Simple one ring nitrogen containing structures - cytosine and thymine
2
Q
Purines
A
Complex, bulkier two ring nitrogen containing structures - adenine and guanine
3
Q
Replication origins
A
Where DNA synthesis begins
4
Q
Initiator proteins
A
Recognise replication origins and locally open up DNA helix
5
Q
Replication forks
A
Where DNA synthesis occurs
6
Q
5’ to 3’
A
Direction DNA is synthesised in
7
Q
Primase
A
An RNA polymerase makes the initial RNA primer to allow DNA to begin replicating
