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Trisomy 13 is the cause of Patau syndrome, which means each cell in the body has three copies of chromosome 13 instead of the usual two. A small percentage of cases occur when only some of the body's cells have an extra copy; such cases are called mosaic trisomy 13. [citation needed]
Trisomy 13: Trisomy 13 occurs when each cell in the body has three copies of chromosome 13 instead of the usual two copies. Trisomy 13 can also result from an extra copy of chromosome 13 in only some of the body's cells (mosaic trisomy 13). In a small percentage of cases, trisomy 13 is caused by a rearrangement of chromosomal material between ...
Having two or more different cell types is called mosaicism. Diploid-triploid mosaicism can be associated with truncal obesity , body/facial asymmetry, weak muscle tone (hypotonia), delays in growth, mild differences in facial features, fusion or webbing between some of the fingers and/or toes ( syndactyly ) and irregularities in the skin ...
You may notice sudden hair loss, gradual hair loss, or hair loss that gets better or worse over time. Essentially, alopecia in women can look quite different from one person to the next. Common ...
The pregnancy loss rate in pregnancies with confined placental mosaicism, diagnosed by chorionic villus sampling, is higher than among pregnancies without placental mosaicism. It may be that sometimes the presence of significant numbers of abnormal cells in the placenta interferes with proper placental function.
Many organ systems are affected by triploidy, but the central nervous system and skeleton are the most severely affected: . Common central nervous system defects seen in triploidy include holoprosencephaly, hydrocephalus (increased amount of cerebrospinal fluid within the brain), ventriculomegaly, Arnold–Chiari malformation, agenesis of the corpus callosum and neural tube defects.
Trisomy 21, one of the three types of Down syndrome, indicates that an individual has a duplicate of chromosome 21. ... She says she notices some of the potential symptoms of her own mosaic Down ...
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