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.
In nature, bacteria can transfer plasmids back and forth, allowing them to share these beneficial. genes. This natural mechanism allows bacteria to adapt to new environments. The recent. occurrence of bacterial resistance to antibiotics is due to the transmission of plasmids. Bio-Radâs unique pGLO plasmid contains the gene for GFP and a gene for resistance to the. antibiotic ampicillin.