How does the interaction between genes on chromosome 21 and other chromosomes contribute to the complexity of Down syndrome?

Down syndrome (DS) is caused by trisomy of human chromosome 21 (Hsa21) and results in a large number of phenotypes, including learning difficulties, cardiac ... This extra genetic material causes the physical features and developmental delays in people with Down syndrome. The features are no different if the extra ... Down syndrome signs and symptoms. A child with Down syndrome might take longer than other children their age to reach certain milestones and to develop certain ... Make an Appointment ... Down syndrome, also known as Trisomy 21, is the most common and readily identifiable chromosomal condition associated with intellectual ... Down syndrome is caused by an extra chromosome 21. Down syndrome affects people differently. It causes learning difficulties and health problems. Fragile X syndrome (FXS) and Down syndrome (DS) are two of the most prevalent genetic causes of intellectual disability. Cerebral palsy is a neurological condition that usually occurs at birth and causes physical disabilities. Down syndrome is a chromosomal abnormality that causes ... Down's syndrome is the commonest identifiable cause of intellectual disability, accounting for around 15-20% of the intellectually disabled population. It is ... Jun 11, 2015 ... The most common cause of having a DS babies is presence extra copy chromosome 21 resulting in trisomy. The other causes can be Robertsonian ... Sep 18, 2024 ... To understand how Down syndrome is inherited, it's important to first grasp what causes this condition. Down syndrome is a genetic condition ...