Molecular Genetics-5 DNA Names & Their Functions Flashcards
1
Q
ENZYME
What is the Function of Topoisomeraze
A
- Helps coil dna molecule
- Or relieves tension of the DNA by untwisting it
2
Q
ENZYME
What is the Function of Helicase
A
- unwinds the DNA by breaking down the H bonds so the molecule can separate its strands
3
Q
What is The Function of Primase
A
Enzyme that add the RNA primers to each parent strand so polymerase can add nucleotides
4
Q
What is the Function of DNA Polymerase III
A
Adds nucleotides from 5 prime to 3 prime.
5
Q
What is the Function of Ligase
A
Joins the new Ozakazi fragments by phosphodiester bonds.
6
Q
What is LEADING & LAGGING
A
Leading: the 5’ to 3’ strand being built TOWARDS the replication fork
Lagging: synthesized in short fragments. As the replication bubble opens up, Primase lays down new RNA primers and DNA polymerase III, creating many Ozakazi fragments (short fragments)
