Keyword Analysis & Research: 3q29

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Is 3q29 microdeletion syndrome inherited?

Most cases of 3q29 microdeletion syndrome are de novo, which means the deletion was not passed down from either parent. Some cases may be inherited from a parent who is only mildly affected by the condition. Diagnosis of 3q29 microdeletion syndrome may be suspected by symptoms but is confirmed by genetic testing.

What is the prognosis for chromosome 3q29 microduplication syndrome?

The prognosis for chromosome 3q29 microduplication syndrome varies depending on the presence and severity of signs and symptoms in each affected individual. Because microduplications have only more recently been diagnosed due to improving technology, it is not known with certainty what the long term affects are.

What are the signs and symptoms of interstitial deletions of 3q29?

A review of 14 children with interstitial deletions of 3q29, found 11 who had the common recurrent 1.6Mb deletion and displayed mental retardation and microcephaly.

What happens to the deleted segment of DNA at 3q29?

The segment that gets deleted is surrounded by short, repeated sequences of DNA that make it prone to rearrangement during cell division. The rearrangement can lead to missing or extra copies of DNA at 3q29. (An extra copy of this segment causes another condition called 3q29 microduplication syndrome .)

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