3866970
Description
Mind Map by Laura Badger, updated more than 1 year ago
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Created by Laura Badger
about 9 years ago
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DNA Replication
- DNA Replication commences at the Origin and is semi-conservative.
- 1. DNA Helicase unwinds the DNA strand at the replication fork.
- 2. DNA Primase (RNA primer) creates a primer on the leading and lagging strands.
- 3. DNA Polymerase III adds free nucleotides to the leading and lagging strand
- 4. On the lagging strand Okazaki fragments are produced. DNA Polymerase I exerts exonuclease activity on the Okazaki fragments and removes the primer
- 5. DNA Ligase seals the nick between the fragments on the lagging strand.
- 5. DNA Ligase seals the nick between the fragments on the lagging strand.
- 4. On the lagging strand Okazaki fragments are produced. DNA Polymerase I exerts exonuclease activity on the Okazaki fragments and removes the primer
- 3. DNA Polymerase III adds free nucleotides to the leading and lagging strand
- 2. DNA Primase (RNA primer) creates a primer on the leading and lagging strands.
- OriC in prokaryotes
- 1. DNA Helicase unwinds the DNA strand at the replication fork.
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