| Chromosome mutation | Definition |
|---|---|
|
Chromosome rearrangement Chromosome duplication Chromosome deletion Inversion Paracentric inversion
Pericentric inversion Translocation
Nonreciprocal translocation
Reciprocal translocation |
Change in chromosome structure Duplication of a chromosome segment Deletion of a chromosome segment Deletion of a chromosome segment Inversion that does not include the centromere in the inverted region Inversion that includes the centromere in the inverted region Movement of a chromosome segment to a nonhomologous chromosome or to another region of the same chromosome Movement of a chromosome segment to a nonhomologous chromosome or to another region of the same chromosome without reciprocal exchange Exchange between segments of nonhomologous chromosomes or between regions of the same chromosome |
|
Aneuploidy Nullisomy Monosomy Trisomy
Tetrasomy |
Change in number of individual chromosomes Loss of both members of a homologous pair Loss of one member of a homologous pair Gain of one chromosome, resulting in three homologous chromosomes Gain of two homologous chromosomes, resulting in four homologous chromosomes |
|
Polyploidy Autopolyploidy
Allopolyploidy |
Addition of entire chromosome sets Polyploidy in which extra chromosome sets are derived from the same species Polyploidy in which extra chromosome sets are derived from two or more species |