What is translocation Down syndrome?

Translocation Down syndrome is a type of Down syndrome that is caused when one chromosome breaks off and attaches to another chromosome. In translocation Down syndrome, the extra 21 chromosome may be attached to the 14 chromosome, or to other chromosome numbers like 13, 15, or 22.Click to see full answer. Subsequently, one may also ask, what is the difference between trisomy 21 and translocation Down syndrome?There are no big differences between the patients who have translocation Down syndrome compared with those who have 3 separate copies of chromosome 21. This is called trisomy 21. That parent will actually have 45 total chromosomes in each cell of the body, but the parent will be normal and healthy.Furthermore, what is mosaicism Down syndrome? Mosaic Down syndrome, or mosaicism, is a rare form of Down syndrome. Down syndrome is a genetic disorder that results in an extra copy of chromosome 21. People with mosaic Down syndrome have a mixture of cells. Some have two copies of chromosome 21, and some have three. how does translocation Down syndrome occur? Translocation Down syndrome happens when an extra copy of chromosome 21 is attached to another chromosome. This is then present in all cells of the body. Chromosomes contain all of the genetic information that tells our body how to grow and function.What are the 3 types of Down syndrome? There are three types of Down syndrome: trisomy 21 (nondisjunction), translocation and mosaicism. Trisomy 21, the most common type of Down syndrome, occurs when there are three, rather than two, number 21 chromosomes present in every cell of the body. Translocation accounts for 4% of all cases of Down syndrome.

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