Deletion of chromosome results from the breakage of a chromosome in which the genetic material is lost during cell division. Breakage of chromosome can happen anywhere on the chromosome. Deletion is the loss of genetic material and it can be caused by errors in the crossover of chromosomes during meiosis.
Dark Angel (TV series) Dark Angel is an American cyberpunk television series that premiered on the Fox network on October 3, 2000. Created by James Cameron and Charles H. Eglee, it starred Jessica Alba in her breakthrough role.
Dark matter. Dark matter, a component of the universe whose presence is discerned from its gravitational attraction rather than its luminosity. Dark matter makes up 26.5 percent of the matter-energy composition of the universe; the rest is dark energy (73 percent) and âordinaryâ visible matter (0.5 percent).