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Most disorders of chromosome number that occur in humans causes symptoms so severe that the developing fetus dies, often before the woman even relizes she is pregnant. Fortunately, these disorders occur rarely. However Down syndrome is the only autosomal trisomy in which the affected individual lives into adulthood. It occurs in about one in every 700 live births,
Wiki User
∙ 12y ago
Wiki User
∙ 9y agoThat disease is called as Down syndrome.
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What is the disorder caused by having an abnormality on chromosome 21?
Down's Syndrome or trisomy 21.
Which genetic disorder does an extra chromosome cause?
trisomy There several types of trisomy, the most well known is probably Down syndrome, which is trisomy 21.
How does nondisjunction cause Trisomy 21?
it can cause Trisomy 21 because an extra chromosome can be added.
What is trisomy mutation?
A trisomy is when a person has 3 versions of a chromosome. 'Normal' humans will only have 2 of each chromosome. For example, having 3 versions of chromosome 21 is known as Trisomy 21 or Down Syndrome.
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 would trisomy 21 look like in a karyotype?
The trisomy 21 in a karyotype would look like extra chromosome 21 I ^^
Defect on chromosome 21 where a third chromosome is present what is this defect called?
This is trisomy 21 i.e. Downs syndrome
What trisomy causes Down syndrome?
Down syndrome is caused by the presence of a third chromosome 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
What is it called when an individual has three copies of a chromosome?
The presence of three copies of a chromosome is known as a trisomy. An example would be Trisomy 21, also known as Down Syndrome.
Which chromosome is down symptoms found?
21 st chromosome it is also call Trisomy 21 because the 21st chromosome has three instead of the normal two.
