DNA Replication Flashcards
careful reproduction of DNA molecules
DNA replication
Reason why DNA is copied up to the last molecule to
make a replica of the original
Steps in DNA replication
- Unwinding
- Polymerization
- Termination
The DNA double helix unwinds with the help of the enzyme helicase
Unwinding
It is referred to as the origin of replication
Unwinding
When the replication fork has been established , another enzyme called
Primase
Attracts complementary RNA bases
Primase - make short RNA
DNAP can only add bases on the
3’ end of the sugar
an important enzyme that prevents the tangling or formation of knots as the DNA unwinds
topoisomerase
The RNA primers that initiated the polymerization process will be remove by the nucleases
Termination
In termination, After the DNA is replicated what happens
hydrogen bonds will be formed
Every time the helix in unwound what happens
another round of replication
This will produce many fragments of the new strand called
Okazaki fragments