A new study finds that children with Trisomy 18 and 13 live longer than thought. April 9, 2012— -- Bella Santorum, the youngest daughter of Republican presidential hopeful Rick Santorum, was ...

Recognition of the clinical features of Trisomy 13 syndrome, a common autosomal trisomy, provides the basis for diagnostic testing and counseling of families. This article provides a systematic guide ...

A baby’s genetic makeup is determined when the sperm meets the egg during fertilization. Typically, a full set of DNA is formed, which contains 23 pairs of chromosomes. Sometimes, extra chromosomes ...

Down's syndrome, also known as trisomy 21, is one of the most common genetic diseases. Researchers have recently analyzed the proteins of individuals with trisomy 21 for the first time: the goal was ...

Mosaic trisomy 8 is a rare genetic condition caused by an extra chromosome. Sometimes called trisomy 8 mosaicism, this condition develops well before birth. It's a result of an abnormality in how ...