There are two taxes when purchasing a vehicle: property tax with the County Treasurer's Office and sales tax with the South Carolina Department of Motor Vehicles. When you purchase a vehicle from a dealership, they are allowed to pick up your registration and license tags without paying the local property taxes.
There is no definitive scientific research that indicates that Down syndrome is caused by environmental factors or the parents' activities before or during pregnancy. The additional partial or full copy of the 21st chromosome which causes Down syndrome can originate from either the father or the mother.
Down Syndrome is the most well known disease caused by chromosomal abnormalities. In this disorder there is a third copy of chromosome 21 (there are two copies of each chromosome in the cells of healthy humans). Chromosomal diseases can be also caused by segments and joins of parts of chromosomes.