I'm guessing that's why some of the SPY's dividends are unqualified. Page 34 of the same website contains the tax information for the DIA. The DIA paid $2.93 a share in 2008, all of which is qualified.
The mutated gene is passed down through a family, and each generation of children can inherit the gene that causes the disease. Rarely, one of these monogenic diseases can occur spontaneously in a child when his/her parents do not have the disease gene, or there is no history of the disease in the family.
Genetics are in molecules called Deoxyribonnucleic Acid (DNA). DNA is a necessary molecule that is apparent in all living things. Genetically inherited diseases are diseases that are passed down through generations within your family. These diseases are specifically transfered through the genes in our DNA. These diseases are passed down by carriers of mutated and defective genes.