Are there different forms of Down’s syndrome?
There are three different types of Down’s syndrome; these include:
- Regular trisomy 21: this form affects around 94 percent of cases. Regular trisomy 21 Down’s syndrome occurs as a result of an additional 21st chromosome in each of the cells.
- Translocation: translocation Down’s syndrome occurs as a result of the extra chromosome 21 attaching to another chromosome in the cell. Translocation Down’s syndrome can be passed down by a parent; however, they may have no symptoms of Down’s syndrome and may just be a carrier of the condition. Translocation accounts for around 4 percent of cases.
- Mosaic: mosaic Down’s syndrome is the rarest form of the condition, affecting just 2 percent of people. Mosaic Down’s syndrome may produce milder symptoms; it occurs as a result of some cells having an additional chromosome 21 and other cells having the normal number of chromosomes.
FAQS Index : Down's Syndrome
- What is Down’s syndrome?
- Are there different forms of Down’s syndrome?
- What causes Down’s syndrome?
- Are there any risk factors?
- What are the symptoms of Down’s syndrome?
- What are the effects of Down’s syndrome?
- What treatments are available for Down’s syndrome?
- How common is Down’s syndrome?
- Is it possible to detect Down’s syndrome during pregnancy?
- Is there any help or support available for people with Down’s syndrome?
Down's Syndrome Guide
- Down's Syndrome
- How is Down’s syndrome diagnosed?
- What are the symptoms of Down’s syndrome?
- In what way does Down’s syndrome affect development?
- What treatment is available for Down’s syndrome?
- What health complications are associated with Down’s syndrome?
- Living with Down’s syndrome
- Down’s syndrome FAQ