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its where some cells are "Down syndrome" cells and some are "typical" cells. meaning some cells have three sets of the 21st chromosome and some have the normal 2 sets.
What else can I help you with?
How do you deal with a child in your classroom who has Mosaic Down syndrome?
You can contact the International Mosaic Down Syndrome Association - they are great! The link is provided below.
Why is it Mosaic?
It is called a mosaic when an individual has different genome on different cells. For example a person can have trisomy 21 (down syndrome) in some specific tissue and be completely normal on other tissue.
Can Down syndrome be considered a type of cancer?
No
Who does the mosaic apply to?
"Mosaic" is a reference to Mosaic law - the laws handed down by Moses, ie: Judaism.
What type of leukemia is associated with Down syndrome?
Acute Lymphoblastic Leukemia (ALL) and Down Syndrome both have been associated with mutations in the JAK2 gene.
Are there different types of turner syndrome?
There are 3 types of Turner syndrome Classic Turner syndrome - 45X - second X chromosome missing from all cells. Mosaic Turner syndrome - 45X/46XX - second X chromosome missing from some cells. The third type of Turner syndrome is when the second X chromosome is damaged or only partly missing.
What types of Down syndrome are there?
There are three different types of Down syndrome: Standard Trisomy 21, Translocation, and Mosaicism. Standard Trisomy 21 is when the extra chromosome 21 comes from either the egg or sperm cell. Between 90% and 95% of all Down syndrome is Standard Trisomy 21.
What is the genetic disorder for having three 21 chromosomes?
down syndrome
Down syndrome is usually caused by an extra copy of what chromosome?
Down syndrome occurs because of the extra chromosome on chromosome 21. If you go onto google images and type in karyotype of Down syndrome, you will find a picture of the extra chromosome. Instead of having two chromosomes on chromosome 21, there is an extra. Type your answer here...
What is a chromosomal disorder that could result from nondisjunction?
Disorders, such as Down's Syndrome, are caused by nondisjunction.
What is the correct spelling 'Down syndrome' or 'Down's syndrome'?
Down syndrome is generally the preferred spelling, although Down's syndrome is sometimes used in American sources.
Is down's syndrome inherited?
Most cases of down syndrome are not inherited. Translocation Down syndrome can be inherited.
