A chromosomal inversion is an abnormality where a group of genes in the chromosome has its order reversed. There are two types of chromosomal inversions a paracentric inversion and a pericentric inversion. A paracentric inversion is where the inversion of the genes takes place but does not include the centromere of the chromosome. Whereas in a pericentric inversion the group of genes reversed does include the centromere .
- ↑ Daniel L. Hartl and Elizabeth W. Jones.(2009) Genetics analysis of genes and genomes, seventh edition, Sudbury: Jones and Bartlett Publishers (pages:275-277)