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Neither. It is an extra #21 chromosome.
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∙ 8y ago
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Can a mutation be passed on to offspring?
Not usually. Only In certain circumstances, can a mutation be passed on to offspring; such as Downs-syndrome.
Can Down syndrome be prevented?
Downs Syndrome, also known as trisomy 21, is a chromosomal disorder and, as such, cannot be avoided nor prevented.
A congenital endocrine condition caused by the presence of an extra X chromosome is?
DOWNS Syndrome.
How is Developmental Delay caused?
Developmental Dealy is caused from genes from the mother and fathers side resulting in their children to have downs syndrome or autism. This is genetic.
Can dogs have Down syndrome?
Yes. The last I knew (but my information is about 15 years old), Down Syndrome is the only chromosomal deffect that they believe can affect all mammals. There are documented cases of cats, dogs, horses, and others with Down Syndrome. They believe the reason they don't see it more often is because the mother's body rejects the baby early or they just don't survive.
Why do people call Down Syndrome Down's?
Down syndrome is the correct term. People who are using "Downs" are speaking incorrectly. Down syndrome used to be called Down's syndrome, but since John Langdon Down did not have nor "invent" this chromosomal abnormality, the correct name is Down syndrome. Countries such as the UK, still use the term Down's syndrome, but shortening it to Down's is not using people first language, therefore, it is incorrect.
What does downs syndrome affect?
people
Down syndromeis caused by errors in what?
Downs syndrome is caused by a genetic mutation called trisomy. Trisomy is when an extra chromosome is present on one set of chromosomes, so instead of the 46 chromosomes of a normal human there are 47. Trisomy can often result in miscarriage as the body cannot cope well with extra chromosomes. Downs syndrome is when there is an extra chromosome 21. Other genetic defects which are caused by trisomy are Edwards syndrome and Patau syndrome.
Is down syndrome found in the us?
Yes, Downs Syndrome is found in USA
Can down syndrome people get depressed?
Yes, people with Downs Syndrome can get depressed.
Is downs syndrome a non disjunction?
A few are.
Where did down syndrome come from?
Downs syndrome is a genetic abnormality caused by an extra chromosome, in simple terms - as a healthy individual you inherit 22 chromosomes from your mother and 22 from your father, so that's 44 altogether, 1 chromosome from each of your parents will combine to form 22 sets, in a person with Downs syndrome there is an extra abnormally shaped set of chromosomes. So in short a person with Downs syndrome has 23 chromosomes instead of 22.
