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Patau syndrome is a very rare syndrome caused by a problem in the chromosomes, the structures in the body's cells that contain DNA. The specific chromosomal problem in Patau syndrome is that the cells have three copies of chromosome 13, as opposed to the usual two copies in most people. Because there are three copies of chromosome 13, the condition is also called trisomy 13.
The cause of Patau syndrome is similar to Down syndrome. Like Patau syndrome, Down syndrome is caused by having an extra copy of a certain chromosome. Individuals with Down syndrome usually have an extra copy of chromosome 21. Thus, Down syndrome is commonly called trisomy 21.
Perhaps not surprisingly, the cause of the trisomy in both Patau and Down syndromes is similar. A phenomenon called nondisjunction is responsible for most cases of trisomy 13 and 21. Nondisjunction is an error that can occur during cell division (specifically the cell division process called meiosis). Rather than splitting evenly, cells that have undergone nondisjunction typically split unevently into two cells; one cell receives one extra copy of a chromosome, while the other is deficient in the chromosome.
A major risk factor for nondisjunction is advanced maternal age. The chance of nondisjunction increases significantly once mothers are 35 years old and greater. As you'd expect, the risk of Patau and Down syndromes increases considerably with advanced maternal age. To view photos of children Living with Trisomy 13 - Patau Syndrome http://www.livingwithtrisomy13.org
What else can I help you with?
What can someone see in a karyotype?
They can see the Gender of the person and/or if they have any types of Syndromes such as (Patau Syndrom, Down Syndrome, etc.)
Is Down syndrome a single gene or polygenic trait?
Down syndrome is a result of having an extra chromosome in one's genes. Chromosome thirteen* if your that much into the science. It is also called trisomy 21 because the chromosome 21 is the one with the abnormalities. *Abnormalities with chromosome thirteen is called Patau syndrome or trisomy 13.
What pathogen causes Down syndrome?
bacteria
What are four of chromosomal mutation?
Four types of chromosomal mutations are Down syndrome (which is a mutation in which there are three copies of chromosome 21), Kinefelter Syndrome (which is a mutation in which a male has an extra X-chromosome), Turner Syndrome (which is a mutation in which a female is missing an X-chromosome), and Patau Syndrome (which is a mutation in which there are three copies of chromosome 13).
How do people get patau sydrome?
Patau syndrome, also known as trisomy 13, occurs when a person has an extra copy of chromosome 13. This typically arises from a random error during cell division in the formation of eggs or sperm, leading to a fertilized egg with three copies of chromosome 13 instead of the usual two. The risk of having a child with Patau syndrome increases with maternal age. It is not inherited in a typical Mendelian fashion, meaning it usually occurs sporadically rather than being passed down through families.
Does Down Syndrome causes childlike behavior?
yes it causes childlike symptoms
What is the medical term meaning condition in which a person has an abnormal number of chromosomes?
The general term is aneuploidy. Some examples: Down Syndrome is a commonly known condition in which the person has an extra copy, making three, of the 21st chromosome. Others are Edwards Syndrome (an extra 18th) and Patau Syndrome (and extra 13th).
How does the cause of cystic fibrosis differ from the cause of down syndrome?
the genetic conditions
How does the cause of down syndrome differ from the cause of cystic fibrosis?
the genetic conditions
What are some common causes of retardation?
There are many causes of retardation. These includes Down syndrome, velocariofacial syndrome, fetal alcohol syndrome, problems during pregnancy and other genetic disorders.
How do cells of people with Down syndrome differ from those of others?
They have an extra chromosome 21.
Causes Down Syndrome?
Having an extra copy of chromosome 21. You are supposed to have 2; when you have 3 (trisomy 21), Down's Syndrome is the result.
