Either chromosome 13 or 7. Mostly 13
#21
Yes. There are people who have both Tourette's syndrome and Asperger's Syndrome. Depending on the severity of each, sometimes Tourette's syndrome will be diagnosed before Asperger's Syndrome. Both conditions have echolalia as a possible symptom, so if it is diagnosed as an element of Tourette's syndrome, it might not be considered as a symptom of another condition, which could delay diagnosis of Asperger's Syndrome. However, Asperger's Syndrome is diagnosed based on a number of symptoms, so a diagnosis of Tourette's syndrome would probably mask only a mild case of Asperger's Syndrome. Before Asperger's Syndrome became a recognized condition, it was diagnosed as other conditions. It is possible that one of those misdiagnoses could have been Tourette's syndrome.
They don't know yet, Recent research suggests that a small number of Tourette syndrome cases may be caused by a defect on chromosome 13 of gene SLITRK1. and some other chromosomes like 7. There now busy with a study to find the genes that may cause tourette syndrome, results will be given by 2018
Down syndrome (trisomy 21) is a disorder associated with an error in the number of chromosomes present. Other examples of disorders associated with an error in the number of chromosomes are Trisomy 18 (Edwards Syndrome), Trisomy 13 (Patau Syndrome), Triple X syndrome, and Klinefelter Syndrome.
Yes.
There are 22 pairs of chromosomes. You have the triple chromosomes at 21 position.
Wikipedia lists the number as one in a hundred children , but if this number is correct it is also quite frightening!
46 chromosomes or 23 pairs of chromosomes.
an adnormal number of chromosomes ofter results in
In the beginning of mitosis the number of chromosomes double. But since during mitosis the chromosomes are divided between the two daughter cells the number of chromosomes at the end is the same number as the beginning before doubling.
In Mitosis, the chromosome number remains the same. In meiosis, the number of chromosomes is halved.
I think you are referring to Down's syndrome. It is due to abnormal number of chromosomes in the cells There is no cure.