• Down Syndrome

What are the possible causes of Down's syndrome?

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βˆ™ 2016-07-04 08:58:58

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When a baby is conceived, it receives genetic information from its parents in the form of 46 chromosomes: 23 from the mother and 23 from the father. In most cases with Down syndrome, the child receives an extra copy of Chromosome 21 - for a total of 47 chromosomes instead of 46.

It's this extra genetic material that causes the physical features and developmental delays associated with Down Syndrome. This form of Down syndrome is called Trisomy 21.

Down syndrome is caused by nondisjunction of this chromosome in a parent who is chromosomally normal.

It is one of the most common chromosomal abnormalities in live-born children. The extra chromosome causes problems with the way the body and brain develop.
Down syndrome or trisomy 21 is caused by nondisjunction of chromosome 21 in a parent who is chromosomally normal and is one of the most common chromosomal abnormalities in liveborn children.

Down's syndrome is caused when there is an extra chromatin present in chromosome 21 when an child is born.

2016-07-04 08:58:58
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Related Questions

Will 2 Downs Syndrome Parents have a child with Downs syndrome?

Yes. 100%

What does downs syndrome affect?


How can Downs syndrome be prevented?

Downs Syndrome, also known as trisomy 21, is a chromosomal disorder and, as such, cannot be avoided nor prevented.

Examples of mutations?

downs syndrome, klinefelters syndrome and turners syndrome are all examples of mutations

How do you get downs syndrome?

You do not "get" Down's syndrome. You are born with it. It is a chromosomal condition of the 21st chromosome.

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.

What can an extra chromosome do?

Autism or Downs syndrome

Is downs syndrome a non disjunction?

A few are.

Is downs syndrome a sex influenced trait?

No. Down syndrome is a meiotic malfunction that causes more than two copies of chromosome 21 in the offspring formed from the affected gamete. It has nothing to do with gender.

Can gene therapy be used as treatment for Down syndrome?

No. Gene therapy alters a person's genetic code, generally by inserting a genetic sequence. Trisomy 21 (downs syndrome) is caused by the presence of a copy (or part of a copy) of the 21st chromosome. Genetic therapy would not be able to remove this extra chromosome. It might be possible (in the future) to "turn off" the extra chromosome, and stop trisomy-21 at the embryo stage. However, by the time a person is born, the physical damage from downs syndrome has been done. After a few months to a year or so, the mental damage from downs syndrome will also be done. So no "treatment" for downs syndrome will be possible using genetic modification such as gene therapy.

What causes downs syndrome?

You cannot do anything to cause your child to have Down Syndrome, drinking,smoking etc in pregnancy does not cause this. Down is caused by a genetic oops where there is an extra chromosome. It is present from the time of conception. You cannot catch Down syndrome.

What is the lifespan of down syndrome?

Downs Syndrome lasts from birth to death. That is the lifetime of the organism.

What disease does Freak have in Freak the Mighty?

downs syndrome

What is Downs Syndrome also called?

Trisomy 21

What age do downs syndrome live to?

122 years

How many kids have downs syndrome in Vietnam?


What can cause low amniotic fluid?

Low amniotic syndrome usually an indication of downs syndrome.

Name two diseases caused by the wrong number of chromosomes?

Downs syndrome and Turner syndrome

Is Down syndrome a sex-linked trait?

Downs Syndrome is not a sex-linked trait.

Who discovered downs syndrome?

John Langdon Down published a description of Down's syndrome in 1866

Can people have downs syndrome and not know it?

It would be very unlikely.

Can a nursing home refuse to take an elderly downs syndrome patient?

The nursing home has to have a valid reason to refuse a patient. Refusing a patient because they have Downs Syndrome would not be valid.

If you drink alcohol while pregnant can it cause your baby to get Down syndrome?

No. Downs Syndrome is a genetic disorder.

What effect does Down syndrome have on the chromosomes?

You have the terms reversed. Chromosomes, or the genes within them, cause Downs Syndrome