For population 25 years and over in Revere: 1  High school or higher: 82.2%. 2  Bachelor's degree or higher: 19.5%. 3  Graduate or professional degree: 6.2%. 4  Unemployed: 5.7%. 5  Mean travel time to work (commute): 33.2 minutes.
Plasmids are extra chromosomal, double stranded, circular DNA molecules present in bacteria. Different kinds of bacterial plasmids based on encoded genes (their roles). F-plasmids (fertility factor or sex factors): Bacterial cells with F plasmids are called F+ cells and acts as donor cells or +strain during bacterial conjugation.
Plasmids. Plasmids are extra-chromosomal DNA molecules that can replicate in a cell separately from the chromosome. Frequently, plasmids have accessory genes that encode functions beneficial to the host cell. They are important for understanding how genes can be moved about between different bacteria and what that means for us. Originally identified in bacteria, plasmids have also been found in yeasts and other fungi. Most bacterial plasmids are circular, although some are linear, and they require at least an origin of replication to be maintained in the cell.