1 In the search box, type Defender and then, in the list of results, click Windows Defender. 2  Click Tools, and then click Options. 3  Click Real-time protection, and then select the Use real-time protection (recommended) check box.  Select the options you want, and then click Save.
plasmid / plasmids. A plasmid is a small, circular, double-stranded DNA molecule that is distinct from a cell's chromosomal DNA. Plasmids naturally exist in bacterial cells, and they also occur in some eukaryotes. Often, the genes carried in plasmids provide bacteria with genetic advantages, such as antibiotic resistance.
Function: Plasmids are pieces of DNA that can be manipulated through the use of restriction enzymes. Since these plasmids are already in the bacteria, the restriction enzymes are able to act as molecular scissors and cut up the part of the plasmid that is desired to be changed.