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Down Syndrome is the name for babies born with a disorder related to their chromosomes. It is caused when meiosis occurs and an error occurs in the cells development. The reason for this defect is often because the parent is over 40 or for some other reason their ....

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.... fingers, a single palmar crease on their hands, and having exceptional social intelligence. Because Down Syndrome is cause by a cell abnormality during meiosis, it can not really be proven that Down Syndrome is hereditary. A perfectly healthy mother could have a Down Syndrome baby even though there was never any sign of the disorder in her pedigree. There are however, three different kinds of Down Syndrome. 95% of Down Syndrome babies have Trisomy 21. This is the presence of extra genetic material on the 21st pair of chromosomes. Around 4% have what is called Translocation. This is where the extra chromosome 21 decided to break away and attach it ....