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Familial extra bisatellited microchromosome and Down syndrome
1Clinical Genetic Unit, County Hospital, Györ, Hungary.
Acta Paediatrica Hungarica
|January 1, 1991
Summary
A Down syndrome infant carried an extra small marker chromosome, which was also present in four healthy family members. This finding suggests the marker chromosome may not always cause developmental issues.
Area of Science:
- Genetics
- Human Chromosome Studies
- Pediatric Genetics
Background:
- Down syndrome is a genetic disorder caused by trisomy 21.
- Extra marker chromosomes can be present in individuals with and without phenotypic abnormalities.
- Family studies are crucial for understanding the inheritance and impact of chromosomal variations.