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trisomy

There several types of trisomy, the most well known is probably Down syndrome, which is trisomy 21.

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11y ago
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13y ago

An extra chromosome 18 (trisomy 18) causes mental retardation.

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11y ago

Down Syndrome

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Q: Which genetic disorder does an extra chromosome cause?
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Related questions

What is an examples of a genetic disorder that is cause by insertion of extra codons in the X sex chromosome?

Fragile X Syndrome


Is Down syndrome a genetic disorder or a chromosome disorder?

Down syndrome is a chromosomal disorder. It is caused by having 1 extra chromosome (chromosome 21).


Can a raccoon have Down's syndrome?

No, Down's syndrome is only a human genetic disorder. Those with the disorder have an extra chromosome. Raccoons do not get this particular genetic disorder.


Down syndrome is a genetic disorder caused by the presence of an extra chromosome in the body cells of humans this extra chromosome occurs in the gamete as a result of?

an error in meiotic cell division


What is an example of a genetic disorder that is caused by insertion of an extra codons in the X sex chromosome?

Fragile X Syndrome


What is an example of a genetic disorder that is caused by insertion of extra codons in x sex chromosome?

Fragile X Syndrome


What is an example of a genetic disorder that is caused by insertion of extra codons of the X sex chromosome?

Fragile X Syndrome


What is an example of a genetic disorder that is caused by insertion of extra codons in the X sex chromosome?

Fragile X Syndrome


Is Klinefelter Syndrome sex-linked or autosomal?

Klinefelter Syndrome is sex-linked, because it is a genetic defect that results in a male having an extra X chromosome.


What does it mean when someone has an extra chromosome?

If someone has an extra chromosome it means there was a genetic mutation that is abnormal in human development. It may result in problems with the person affecting them on a basic level, or may go fully unnoticed. A common disorder that can be caused by having an extra chromosome is Down's Syndrome.


What does the karyotype of a person with down syndrome show?

A genetic disorder caused by the presence of all or part of a third copy of chromosome 21.


Is Angelman syndrome the same as Down syndrome?

Angelman syndrome is a genetic disorder, as is Down syndrome. But they are not the same. Angelman Syndrome involves a deletion of Chromosome 15, whereas people with Down syndrome have an extra copy of Chromosome 21.