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What are the chances that a sibling of a Down syndrome brother will have a baby with Down syndrome?
Wiki User
∙ 12y ago
After having one child with Down syndrome, the likelihood of having another is about one percent. If the first child's Down Syndrome is due to translocation trisomy 21, the likelihood of another Down Syndrome child increases. As far as researchers know at this point, Down Syndrome is not attributed to the parents' behavior prior and/or during pregnancy or any environmental factors. The incidence of Down Syndrome does rise if the mother is older than 35, but it does not account for a large number of Down Syndrome children. Since more women are having children at ages younger than 35, then number of babies born with the syndrome is higher in younger age groups.
Wiki User
∙ 14y ago
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If you have a brother or a sister with Down syndrome does this increase the chances of giving birth to a child with Down syndrome?
no if the one of the parents have it and it is genetic then yes. but in this case no because it is not genetic
If an older sibling has Down syndrome will a newborn baby also be born with Down syndrome?
No, this is not necessarily the case.
Who is the skateboarder whose brother has Down syndrome?
Snowboarder Kevin Pearce has a brother with Down syndrome.
Does applying to a college that your sibling attends increase your chances of acceptance?
It shouldn't affect your chances as its down to your ability and qualifications to see whether they fit with the college requirements not what your sibling does or can do.Hope this helps.
Does Lee Westwood have a brother who has Down syndrome?
yes
If there is Down syndrome on your husband's side are you likely to have a special needs baby?
You're husband may not necessarily have the down syndrome allele. Also the only way you would have a special needs baby is if you also have the recessive (down syndrome) allele. Here are the chances: If neither of you have the recessive (down syndrome) allele - 0% If one of you have the recessive allele - 0% If you both have the recessive allele - 25% The chances are pretty low but it is not definite that you wont have a special needs baby.
What are the chances that a mother with a Down syndrome child will have another child with Down syndrome if she gets pregnant at age 48?
A woman's risk of giving birth to a child with Down syndrome increases as she gets older. A 40 year old is much more likely to be in this situation than a 20 year old.
How do you explain to a 5-year-old that his older brother has Down syndrome?
just tell him slowley and dont make the child with down syndrome fell any different to the one who is perfectly fine.
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
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.
