DNA Replication Flashcards
1
Q
What is the difference between nucleoside and nucleotide?
A
Nucleoside = base + sugar Nucleotide = nucleoside + phosphate
2
Q
Purines vs pyrimidines
Name them and explain whats different between the two
A
Purines = A + G Pyrimidines = C + U + T
Purines are larger than pyrimidines
Purine = 2 ring structure
Pyrimidines = 1 ring structure
3
Q
What direction is DNA replicated in?
A
5’ -> 3’
4
Q
What enzyme catalyses DNA replication?
A
DNA polymerase
5
Q
The lagging strand is replicated in short fragments called?
A
Okazaki fragments
6
Q
What is responsible for unwinding of DNA?
A
Helicase
7
Q
What are the 3 main classes of RNA?
A
rRNA
tRNA
mRNA
