DNA replication Flashcards
(10 cards)
1
Q
What is the structure of DNA?
A
DNA is a double helix.
2
Q
What are the repeating units of DNA called?
A
Nucleotides.
3
Q
What are the components of each nucleotide?
A
Sugar (deoxyribose), phosphate, and nitrogenous base (A, T, C, G).
4
Q
What does it mean that DNA strands are antiparallel?
A
One strand runs 3’ → 5’ and the other runs 5’ → 3’.
5
Q
What is the function of DNA Helicase?
A
Unzips the DNA strand.
6
Q
What is the function of Primase?
A
Adds short RNA primers.
7
Q
What is the function of DNA Polymerase?
A
Adds new bases to build new DNA strands.
8
Q
What is the function of DNA Ligase?
A
Seals gaps (joins Okazaki fragments).
9
Q
What is the leading strand in DNA replication?
A
Copied continuously.
10
Q
What is the lagging strand in DNA replication?
A
Copied in pieces (Okazaki Fragments).
