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.
However, mutation can also disrupt normal gene activity and cause diseases, like cancer Cancer is the most common human genetic disease; it is caused by mutations occurring in a number of growth-controlling genes. Sometimes faulty, cancer-causing genes can exist from birth, increasing a personâs chance of getting cancer. An illustration to show an example of a DNA mutation.