A genetic rearrangement through loss of segments of DNA (chromosomes), bringing sequences, which are normally separated, into close proximity.
Loss of a section of the genetic material from a chromosome. The size of a deleted material can vary from a single nucleotide to sections containing a number of genes.
A type of chromosome mutation in which a part of the chromosome, and therefore the genes carried on that pan, is lost.
In cytogenetics, the loss of a portion of a chromosome.
The condition characterized by the absence of genetic material that is typically present in a chromosome. Frequently, this deficiency arises from an error during the replication process of an egg or sperm cell.