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Down syndrome with unusual familial translocation (1;21). A case report
1Department of Anatomy, St John's Medical College, Bangalore, India.
Annales De Genetique
|January 1, 1993
Abstract:
A case of t (1;21) in a 9-year-old female Down syndrome patient is reported. Her karyotype was 47,XX, t (1;21) (mat), +21. The father's karyotype was normal, while that of the mother was 46, XX, t (1;21). An amniotic fluid cell culture revealed a trisomy 21 and a t (1;21) in a male fetus. This is the first report of a familial case of trisomy 21 with t (1;21) from our country.