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Trisomy 13 (Patau syndrome) is a rare genetic condition when an extra copy of chromosome 13 attaches to a pair of chromosomes. Symptoms affect how the face, brain and heart develop, along with several other internal organs. Trisomy 13 symptoms are life-threatening and many cases result in a miscarriage or the baby passing away before turning 1.
Chromosome 13 is one of the 23 pairs of chromosomes in humans. People normally have two copies of this chromosome. Chromosome 13 spans about 113 million base pairs (the building material of DNA) and represents between 3.5 and 4% of the total DNA in cells.
Chromosome 13 is made up of about 115 million DNA building blocks (base pairs) and represents between 3.5 and 4 percent of the total DNA in cells. Learn about health implications of genetic changes.
12 Οκτ 2007 · Trisomy 13 Syndrome is a rare chromosomal disorder in which all or a portion of chromosome 13 appears three times (trisomy) rather than twice in cells of the body. In some affected individuals, only a percentage of cells may contain the extra 13th chromosome (mosaicism), whereas other cells contain the normal chromosomal pair.
Trisomy 13 is diagnosed based on the symptoms, clinical exam, and confirmed by the results of a chromosome test. Trisomy 13 is a type of chromosome disorder characterized by having 3 copies of chromosome 13 in cells of the body, instead of the usual 2 copies.
9 Σεπ 2021 · Chromosome 13 is made up of about 115 million DNA building blocks (base pairs) and represents between 3.5 and 4 percent of the total DNA in cells. Identifying genes on each chromosome is an active area of genetic research.
Chromosome 13 is the largest acrocentric human chromosome. It carries genes involved in cancer including the breast cancer type 2 (BRCA2) and retinoblastoma (RB1) genes, is frequently rearranged in B-cell chronic lymphocytic leukaemia, and contains the DAOA locus associated with bipolar disorder and schizophrenia.