Domain. 1. When referring to an Internet address or name a domain or domain name is the location of a website. For example, the domain name computerhope.com points to the IP address 69.72.169.241, but it is generally easier to remember a name rather than a long string of numbers.omain. 1. When referring to an Internet address or name a domain or domain name is the location of a website. For example, the domain name computerhope.com points to the IP address 69.72.169.241, but it is generally easier to remember a name rather than a long string of numbers.
They are most commonly found in bacteria as small, circular, double-stranded DNA molecules; however, plasmids are sometimes present in archaea and eukaryotic organisms. In nature, plasmids often carry genes that may benefit the survival of the organism, for example antibiotic resistance.he normal number of copies of plasmid that may be found in a single cell is called the copy number, and is determined by how the replication initiation is regulated and the size of the molecule. Larger plasmids tend to have lower copy number.
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.