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Down syndrome is a the addition of an extra chromosome and not really related to evolution. It is more of a genetic mutation that causes this event to occur.
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∙ 13y ago
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Where on earth does Down Syndrome most occur?
The number is the same everywhere.
When does Down syndrome most often occur?
Down's syndrome is increased with advanced maternal age, which is defined as more than 35 years of age.
What age does down syndrome start to occur?
Down syndrome is something you are born with; it is not something that will suddenly "appear."
What are some statistics related to down syndrome?
Some of the conditions that occur more often among children with Down syndrome include: heart defects, vision problems and hearing loss.
What are the similarities and differences between Down syndrome and Turner syndrome?
Down syndrome is caused by an extra or part of an extra 21st chromosome while Turner syndrome is caused by an absence in one or part of the sex(X) chromosome.Down syndrome can occur in both male and femalewhile Turner syndrome only occurs in female.People with Down syndrome tend to have a lower than average cognitive ability.Both Down syndrome and Turner syndrome are at higher risk for having medical conditions such as heart problems.
If a child is born with down syndrome when did the mutation occur?
During meiosis
What is the genetic disorder for having three 21 chromosomes?
down syndrome
What is a chromosomal disorder that could result from nondisjunction?
Disorders, such as Down's Syndrome, are caused by nondisjunction.
What condition results when a child is born with an extra chromosome on the third pair?
Down syndrome
Does turner syndrome occur in boys?
No, Turner syndrome affects girls.
What is the correct spelling 'Down syndrome' or 'Down's syndrome'?
Down syndrome is generally the preferred spelling, although Down's syndrome is sometimes used in American sources.
Is down's syndrome inherited?
Most cases of down syndrome are not inherited. Translocation Down syndrome can be inherited.
