Trisomy 21 is now accepted to be the major cause of ... These results are both daunting and promising. On one hand, they suggest that there will be no magic bullet for treating DS, because large ...

Dr. Khanna explains that Trisomy 21 stands as the primary cause of Down syndrome since ... and sloping eye positioning together with small nasal structures and a single hand palm fold. She adds that ...

2020). Most commonly, trisomy 21 arises because of meiotic nondisjunction in which a pair of chromosomes 21 fail to separate in either the sperm or egg. The frequency of this alteration is relatively ...