What are the possible causes of Down's syndrome?
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
Down's syndrome is caused when there is an extra chromatin present
in chromosome 21 when an child is born.