A century after Down syndrome was first described, scientists discovered that the root cause of this disorder is a condition called trisomy 21 ... of MMU16, and all display some symptoms of ...

Could two pieces of a stone mosaic ever be identical? Of course, the answer is no--and each stone’s variation subtly contributes value to the finished work. Why should your cells be any ...

Start the day smarter. Get all the news you need in your inbox each morning. “When I read the articles about the Kate Cox ...

Recognition of the clinical features of Trisomy 13 syndrome ... and photographs to enhance recognition of this genetic disorder. The principles of numerical chromosomal abnormalities as related ...

Generally, a consistency in the number of chromosomes is maintained in all cells of the organism ... The recurrence risk with trisomy is 1% to 2% or the maternal age risk, whichever is greater.