| Literature DB >> 2960262 |
K Miller1, A Reimer, B Schulze.
Abstract
A direct tandem duplication chromosome 21 was found in a boy with Down's syndrome. The proband's mother and grandmother both carried a ring chromosome 21. The observed duplication chromosome in the child may be explained either by recombination between the maternal ring and the mother's normal chromosome 21 or by break of a double-sized ring chromosome 21.Entities:
Mesh：
Year: 1987 PMID： 2960262
Source DB: PubMed Journal: Ann Genet ISSN： 0003-3995