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.
It is important to note that genes themselves do not cause diseaseâgenetic disorders are caused by mutations that make a gene function improperly. For example, when people say that someone has âthe cystic fibrosis gene,â they are usually referring to a mutated version of the CFTR gene, which causes the disease. condition caused by mutations in one or more genes is called a genetic disorder. In some cases, gene mutations are so severe that they prevent an embryo from surviving until birth. These changes occur in genes that are essential for development, and often disrupt the development of an embryo in its earliest stages.