What part of DNA or genes is altered to cause Diabetes?

I have a science project and need to know what part of a person's genes or DNA is altered for Diabetes to occur.What part of DNA or genes is altered to cause Diabetes?
The part that is responsible for the creation of the hormone "Insulin".. In a type 2 diabetic, the insulin that is produced is slowed or the insulin itself is deformed to the point your body cannot utilize it properly. Insulin is used by the body to "unlock" the cell membrane so the glucose can enter into the cell to be used for energy. If the insulin is not there or is deformed, the glucose cannot get into the cells and, thus, builds up in the bloodstream..... To much glucose in the bloodstream is known as diabetes..



Type one is a different story.... it usually starts at a young age and is where the pancreas either produces very little or no insulin at all. Insulin injections are required for type 1 diabetics. The cause of the shut down of the pancreas is still a mystery, but many researchers believe it is due to the immune system attacking it...



Hope this helps you out !!!