sidebarA. Genetic engineering (GE) is the modification of an organismâs genetic composition by artificial means, often involving the transfer of specific traits, or genes, from one organism into a plant or animal of an entirely different species.hen gene transfer occurs, the resulting organism is called transgenic or a GMO (genetically modified organism). Genetic engineering is different from traditional cross breeding, where genes can only be exchanged between closely related species.
Short for high definition-DVD, a generic term for the technology of recording high-definition video on a DVD. In general, HD-DVD is capable of storing between two and four times as much data as standard DVD. The two most prominent competing technologies are Blu-ray and AOD.
A standard DVD has storage capacity of 4.7 gigabytes. With new technologies, dual-layer DVDs have about 8.5 gigabytes of recordable space. These discs are distinguished from standard DVDs as DVD+R DL or DVD-R DL. Dual-layer DVDs are engineered with two separate layers of recording space on one side of the disc. The first layer is semitransparent so that the laser can shine through to access the second layer.