How many replication bubbles occur in a chromosome?
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occurs during S phase of cell cycle. It is multistep complex process which requires over a dozen enzymes and proteins.
DNA replication in Prokaryotes
1. It occurs inside the cytoplasm
2. There is only one origin of replication per DNA molecule
3. Origin of replication is formed of about 100-200 or more nucleotides
4. Replication of DNA occurs at one point in each prokaryotic DNA molecule
5. Only two replication fork is formed in each replicating prokaryotic chromosome, as DNA replication is bidirectional
6. Prokaryotic chromosome has one replicon
7. One replication bubble is formed during DNA replication
8. Initiation of DNA replication in prokaryotes is carried out by protein DnaA and DnaB
9. DNA gyrase is needed
10. Okazaki fragment are large, 1000-2000 nucleotides long.
11. Replication is very rapid, some 2000 bp per second are added.
DNA replication in Prokaryotes
1. It occurs inside the cytoplasm
2. There is only one origin of replication per DNA molecule
3. Origin of replication is formed of about 100-200 or more nucleotides
4. Replication of DNA occurs at one point in each prokaryotic DNA molecule
5. Only two replication fork is formed in each replicating prokaryotic chromosome, as DNA replication is bidirectional
6. Prokaryotic chromosome has one replicon
7. One replication bubble is formed during DNA replication
8. Initiation of DNA replication in prokaryotes is carried out by protein DnaA and DnaB
9. DNA gyrase is needed
10. Okazaki fragment are large, 1000-2000 nucleotides long.
11. Replication is very rapid, some 2000 bp per second are added.
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