Tuesday, November 5, 2013

11/4 DNA Replication Enzymes

Steps to replication-
1) Helicase- breaks hydrogen bonds "unzips"
2) RNA Primer- primes it with RNA nucleotides, reads 3-5, OH on 3
3) DNA Pol III- reads 3-5, adds nucleotides to synthesizing strand
4) DNA Pol I- Replaces RNA nucleotide with DNA nucleotide (new DNA)
5) DNA Ligase- Lagging strand has Okazaki fragments, ligase creates phosphodeister bond (bond between phosphate and sugar in nucleotide) and seals gaps


No comments:

Post a Comment