8.2 DNA replication Flashcards
1
Q
How is DNA replicated
A
it is split into one strand each, and then a second strand is built on the original one
2
Q
What unzips the DNA
A
Helicase
3
Q
What tells the DNA polymerase where to build, or primes the area to build
A
Primase
4
Q
What builds the second strand of DNA
A
DNA polymerase lll
5
Q
What adds the finer details to the second strand of DNA
A
DNA polymerase l
6
Q
What is the only way DNA polymerase can build
A
3´ to 5´
7
Q
Why does a leading and lagging strand form in the constructed DNA
A
Because DNA polymerase can only build 3’ to 5’ and while the leading strand builds just fine, the lagging needs to constantly be stopping, moving backwards, and then starting again, screwing up the building process
8
Q
What fixes the lagging strand
A
DNA polymerase l and Ligase
