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Doctor insights on: Down Syndrome Dominant Or Recessive

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Is Down syndrome dominant or recessive?

Is Down syndrome dominant or recessive?

Neither: Down syndrome happens when an extra 21 chromosome is present in all the cells of the body. It happens before conception when the donor egg fails to shed one of its 21 chromosomes in the formation of the egg & the male 21 joins the female pair & creates an embryo with 3 number 21's. ...Read more

Dr. Kathryn Akin
619 doctors shared insights

Down Syndrome (Definition)

Down syndrome is a genetic condition in which there is an extra chromosome present. Symptoms may range from mild to severe. Children with Down syndrome share a common physical appearance including a flattened nose, small ears, a small mouth, upward slanting eyes, and a single crease in the ...Read more

Dr. Scott McLean
Board Certified, Clinical Genetics
29 years in practice
204.0K people helped
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I was wondering is Down syndrome dominant or recessive?

I was wondering is Down syndrome dominant or recessive?

No autosomal: Down syndrome happens when an extra 21 chromosome is present in all the cells of the body. It happens before conception when the donor egg fails to shed one of its 21 chromosomes in the formation of the egg ; the male 21 joins the female pair ; creates an embryo with 3 number 21's. It has nothing to do with traits or mutations in the gene code. ...Read more

Dr. Scott McLean
Board Certified, Clinical Genetics
29 years in practice
204.0K people helped
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Living with Down Syndrome (Checklist)

Get genetic counseling.
Once
Enroll in early intervention program.
Once
Get help from local and national support groups.
Once
Consider help from mental health workers.
Once
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Is it true that Down syndrome is dominant or recessive?

Is it true that Down syndrome is dominant or recessive?

Neither: Down syndrome is neither dominant nor recessive. Down syndrome occurs due to there being 3 number 21. ...Read more

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Is Down syndrome an autosomal dominant gene ? Please advise!

Is Down syndrome an autosomal dominant gene ? Please advise!

Not autosomal: Down syndrome happens when an extra 21 chromosome is present in the cells of the body. It happens before conception when the donor egg fails to shed one of its 21 chromosomes in the formation of the egg & the male 21 joins the female pair & creates an embryo with 3 number 21's. It has nothing to do with autosomal traits or mutations in the gene code. ...Read more

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Living with Down Syndrome (Checklist)

Learn about Down's syndrome
once
Create Family/friend support
once
Join networks.like the Arc or DSA
once
Board Certified, Clinical Genetics
29 years in practice
204.0K people helped
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Is Down syndrome sex linked/recessive/or dominant?

Is Down syndrome sex linked/recessive/or dominant?

None of the above: Down syndrome happens when an extra 21 chromosome is present in all the cells of the body. It happens before conception when the donor egg fails to shed one of its 21 chromosomes in the formation of the egg; the male 21 joins the female pair & creates an embryo with 3 number 21's. It has nothing to do with traits or mutations in the gene code. ...Read more

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How can you inherit down syndrome?

Depends on parents: An unaffected mother or father could have a balanced(normal) set of chromasome material where a piece of one 21 chromasome is stuck on another.If the egg or sperm had the normal 21 and an extra 21piece hidden on another chromasome, they could pass it to the baby. It only takes an extra piece of 21 to cause ds.It is important to study ds to verify type, as translocation ds can recur each pregnany. ...Read more

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Living with Down Syndrome (Checklist)

Read "Welcome to Holland"
once
Find and access early intervention
daily
Ask your doctor to use Down Syndrome growth charts
once
Ask your doctor for the latest Down Syndrome Health maintenance guide
once
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If someone in your family has down syndrome, is there a larger risk that your baby will have down syndrome?

Slight risk: Most down syndrome is sporadic. A few patients with down syndrome have the extra 21 chromosome translocated on to another chromosome. In some of these cases the parents can carry the translocated chromosome in a balanced form and they and other family members could be at increased risk to have children with the syndrome. ...Read more

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Dr. Scott McLean
Board Certified, Clinical Genetics
29 years in practice
204.0K people helped
Continue
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