Relation To The Genome
The episome that harbors the F factor can exist as an independent plasmid or integrate into the bacterial cell's genome. There are several names for the possible states:
- Hfr bacteria possess the entire F episome integrated into the bacterial genome.
- F+ bacteria possess F factor as a plasmid independent of the bacterial genome. The F plasmid contains only F factor DNA and no DNA from the bacterial genome.
- F' (F-prime) bacteria is formed by incorrect excision from the chromosome, resulting in an F plasmid carrying bacterial sequences that were next to where the F episome was inserted.
- F- bacteria do not contain F factor. Will act as the recipient.
Read more about this topic: Fertility Factor
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