diseases caused by insertion or deletion
A chromosome deletion is also possible, where an entire section of a chromosome is deleted. Diseases that can be caused by deletion mutation can include 22q11.2 deletion syndrome, cystic fibrosis, Turner syndrome, and Williams syndrome.
frameshift mutation / frame-shift mutation; frameshift. A frameshift mutation is a genetic mutation caused by a deletion or insertion in a DNA sequence that shifts the way the sequence is read. A DNA sequence is a chain of many smaller molecules called nucleotides.