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.
Genetic traits can be passed through families in several distinct patterns. The most common patterns are the following: 1  Dominant genetic diseases are caused by a mutation in one copy of a gene.2  If a parent has a dominant genetic disease, then each of that personâs children has a 50% chance of inheriting the disease. Dominant diseases can also occur spontaneously; this happens when a random mutation in one gene occurs at conception. 2  Examples of dominant genetic diseases include Achondroplasia and Huntington disease. 3  For some dominant genetic diseases, there may be specific DNA tests available. 4  Recessive genetic diseases.