One such chromosome abnormality is known as 13–15 trisomy, which is characterized by the presence of an extra chromosome of the 13–15, or, group. 1,2 It has been d-cribed 3,12 in males and ...

Trisomy 21 is now accepted to be ... In these cases, Down syndrome is caused by a translocation of chromosomes 15 and 21 (Figure 3), in which the long arms of two acrocentric chromosomes are ...

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 ...

There is also an apparent "bump" in trisomy among teenage girls. This slight increase has also been observed in several studies of Down syndrome, and might reflect a tendency to non-disjoin in the ...