1 If you are unhappy with your tattoo, having it altered or tattooed over might cost hundreds of dollars and removal is even more expensive-up to $10,000 in some cases. And some artists will charge extra for custom designs, but it is more common to ask for a deposit of about $50. 2  If you are unhappy with your tattoo, having it altered or tattooed over might cost hundreds of dollars and removal is even more expensive-up to $10,000 in some cases.
1 Single gene disorders are caused by a mutation in a single gene. 2  The mutation may be present on one or both chromosomes (one chromosome inherited from each parent). 3  Sickle cell disease, cystic fibrosis and gCJD are examples of single gene disorders.
Other diseases are caused by acquired mutations in a gene or group of genes that occur during a person's life. Such mutations are not inherited from a parent, but occur either randomly or due to some environmental exposure (such as cigarette smoke). These include many cancers, as well as some forms of neurofibromatosis. Genetic disorders typically involve the inheritance of a particular mutated disease-causing gene, such as sickle cell disease, cystic fibrosis, and Tay-Sachs disease.