Karyotype
No
%
Regular trisomy 21
47,XY,+21
12
54.6
47,XX,+21
8
36.4
Translocation DS
46, XY, +21, rob (21; 21) (q10; q10)
1
4.5
Mosaic DS
47,XY,+21/46,XY
1
4.5
Total
22
100
No: Number, DS: Down Syndrome
Table 2:
Karyotype analysis of 22 Down syndrome cases.