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== == Trisomy 21 is more of a chromosome abnormality/birth defect than a disease. It is also called Down syndrome. You cannot "catch" it; it is not infectious. According to statistics, women over 35 have a higher chance of bearing a baby with Trisomy 21 than do younger women. The theory is that, as we age, our chromosomes become "sticky" during the process of division. The amount of the chromosome that breaks off determines how functional or affected the offspring will be.
Although I have a bachelor's degree in genetics, you may want to get a more in-depth answer from a doctor or a genetic counselor.
What else can I help you with?
What is Downs Syndrome also called?
Trisomy 21
Where can you find information on Down syndrome in canines?
I searched for canine trisomy in the internet. It looks like they can have a trisomy 1 whcih causes some types of cancers, trysomy 13 (thyroid issues) and 18. The word is actually trisomyism. Downs is trisomy 21. Humans are also sometimes born with a trisomy 19. Each has it's own name after the doctor who discovered them, Edwards, Downs, and Bach. Did not find any canine with trisomy 21
Can Down syndrome be prevented?
Downs Syndrome, also known as trisomy 21, is a chromosomal disorder and, as such, cannot be avoided nor prevented.
What is a common autosomal trisomy?
Something tells me that trisomy 21 is not really the most common, but it is the common among babies that actually live. Other trisomies common among live births are those of the 13th and 18th chromosome. Trisomy 16 is the most common known disorder of miscarried fetuses. Trisomy is caused by nondisjunction of a pair of chromosomes during meiosis or mitosis. What causes nondisjunction? If we could figure that out, we might be able put trisomies in the past.
Defect on chromosome 21 where a third chromosome is present what is this defect called?
The defect of having a third chromosome 21 is known as Trisomy 21, which causes Down syndrome. This genetic condition leads to intellectual disabilities, characteristic facial features, and an increased risk of certain health issues.
What is another name for trisomy-21, commonly known as Down syndrome?
Another name for trisomy-21, commonly known as Down syndrome, is trisomy 21.
What is the relationship between trisomy 21 and Down syndrome?
Trisomy 21 is down's syndrome, which is an extra copy of chromosome 21
What part of the body is involved in Trisomy 21?
The root of Trisomy 21 is within the chromosomes of the body cells.
What would trisomy 21 look like in a karyotype?
The trisomy 21 in a karyotype would look like extra chromosome 21 I ^^
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 are the major chromosomal changes in trisomy?
Trisomy is defined as the presence of three homologous chromosomes. For example, Down's Syndrome is caused by trisomy-21, 3 copies of chromosome 21.
When Having three copies of chromosomes 21 leads to a disorder known as trisomy 21 or more commonly as?
Down syndrome is trisomy 21
