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.
A dark horse is a little-known person or thing that emerges to prominence, especially in a competition of some sort or a contestant that seems unlikely to succeed. 1  1 Origin. Barack Obama, elected the forty-fourth president in 2008; Obama had just come to prominence in 2004 with his speech at the Democratic Party convention. 2  He was first elected as a senator for the state of Illinois.