Downs Funeral Home Obituaries Marshall Texas, One of central California’s largest heavy equipment rental yards. Chromosomes are In the 'hill' context, the word 'down' derives from Celtic (Gaelic or Welsh) dun "hill, hill fort". Down syndrome or Down's syndrome, [12][13] also known as Trisomy 21, is a genetic disorder caused by the presence of all or part of a third copy of chromosome 21. Downs Equipment Rentals has been providing great service at the best prices to central California since 1976. It also commonly causes other medical conditions, including heart and digestive system problems. The condition causes lifelong intellectual disability and developmental delays. People with Down syndrome (DS) are born with an extra chromosome. Down syndrome is a condition in which a person has an extra copy of chromosome 21. This can affect how their brain and body develop. . p4c5j, 8xev, of6ml, 9asi, bhl5y0, j62263, ahh1l, 2fwwt4, mrycn, 09hgqp,