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Is down syndrome common in certain enthnicity?
No.
Is down syndrome more common in certain races or genders?
yes
What human disease is caused by non-disjunction?
Down's syndrome is the most common.
Is down syndrome more common in America?
No.
Is down's syndrome more common in one ethnicity?
Caucasian
The most common autosomal abnormality is seen is a person with?
Down syndrome
What are some characteristics of children with Down syndrome?
They have speech problemsThey walk in a certain way
What is the most common cause for down syndrome?
Down's syndrome is a disorder caused by defective genes. It is most commonly caused by parents who are elderly at the time of birth.
Is it common for a person with Down syndrome to marry someone who doesn't have Down syndrome?
People with Down syndrome are no different from the rest of us, except they look slightly different and are not able to do as many things as "normal" people. Therefore, unless they have a severe case of Down syndrome, they should have normal marriage ceremonies.
What is the most common chromosomal abnormality in humans?
Trisomy 21, Down's syndrome
Is down syndrome most common with females?
Down Syndrome is spread fairly evenly between males and females. There does seem to be a slightly higher incidence among males, however.
How are cells of a person with Down syndrome different from those of a person without the disorder?
In Down syndrome, a person's cells have an extra copy of chromosome 21. In other words, instead of a pair of chromosomes, a person with Down syndrome has three of that chromosome. Down syndrome most often occurs when chromosomes fail to separate properly during meiosis. People with Down syndrome have a degree of mental retardation. Heart defects are also common, but can be treated.
