Deletions can also cause frameshift mutations. In this example, the deletion eliminated the word cat. The fat cat ate the wee rat. The fat ate the wee rat. Insertion Mutations that result in the addition of extra DNA are called insertions.
Insertions can also cause frameshift mutations, and general result in a nonfunctional protein.
The fat cat ate the wee rat. The fat cat xlw ate the wee rat. In an inversion mutation, an entire section of DNA is reversed. A small inversion may involve only a few bases within a gene, while longer inversions involve large regions of a chromosome containing several genes. The fat cat ate the wee rat.