Question 1

is down syndrome autosomal or sex linked?

Accepted Answer

Extra chromosome: Down Syndrome is caused by having an extra copy of Chromosome 21, so instead of 2 copies, you have 3. This is not an autosomal disorder and is not sex linked. This usually occurs due to abnormal cell division when they egg and the sperm meet during fertilization.

Question 2

is down syndrome sex-linked or autosomal?

Accepted Answer

Down Syndrome: Down syndrome, also known as Trisomy 21,  is an autosomal genetic disorder.  Down syndrome occurs when a person has a full or partial copy of chromosome 21.

Question 3

down syndrome is autosomal dominat?

Accepted Answer

No: No. It is chromosomal. Down syndrome is not usually passed from one generation to the next. So it is not dominant or recessive.

Question 4

is down syndrome sex linked/recessive/or dominant?

Accepted Answer

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.

Question 5

is down syndrome dominant , recessive , polygenic inheritance , multiple alleles , sex linked, codominance , or incomplete dominance ?

Accepted Answer

Abn. cell division: Most cases of Down syndrome are not inherited. When the condition is caused by trisomy 21, the chromosomal abnormality occurs as a random event during the formation of reproductive cells in a parent. The abnormality usually occurs in egg cells, but it occasionally occurs in sperm cells. An error in cell division called nondisjunction results in a reproductive cell with an abn. number of chromosoms

Question 6

what is down syndrome?

Accepted Answer

Chromosome defect: Ds is one of the more common chromosome(c) defects that can survive pregnancy (many others miscarry).Eggs are supposed to have a single 21c & combine with the 21 from dads normal sperm.Here a pair of moms 21c +dad's 21 creates a baby with the extra 21c in all tissues.This extra material confuses the creation of body parts causing ds..Various prenatal tests can pick up signs early on.

Question 7

why is my baby down syndrome?

Accepted Answer

Chromosome defect: Ds is one of the more common chromosome(c) defects that can survive pregnancy (many others miscarry).Eggs are supposed to have a single 21c & combine with the 21 from dads normal sperm.In ds the pair of moms 21c +dad's 21 creates a baby with the three 21c in all tissues.This extra material confuses the creation of body parts causing ds..Various prenatal tests can pick up signs early on.

Question 8

why does down syndrome happen?

Accepted Answer

Mistake in chromosom: During the formation of normal eggs or sperm the chromosome(c) pairs are supposed to split leaving one of each in the egg/sperm.At conception the joining of egg/sperm brings together the pair &  as tissue grows it has the proper number in each cell. With ds the egg has a pair of 21c and at conception a triple 21 is created. All cells derived after will have an extra 21 & become a ds child.

Question 9

how can you inherit down syndrome?

Accepted Answer

Yes: A woman with Down syndrome (trisomy 21) may be able to get pregnant, but men with Down syndrome are almost always sterile, due to problems with sperm production.  That means about half of the babies born to women with Down syndrome will inherit an extra chromosome #21 and be Down syndrome babies.  Said another way, if you inherited down syndrome, your mother must have had down syndrome.

Question 10

how does a person get down syndrome?

Accepted Answer

Dividing Chromasomes: We all have 22 pairs of regular chromosomes (chms) plus an xx or xy of the sex chms. The pairs split during egg or sperm formation so each has 22 chms + an x or y.  If the 21 chromosome doesn't split right & brings a pair to the egg(or sperm) the fertilized egg will have an extra 21 so the infant will have 47 total. All subsequent cells have 47, giving rise to a ds kid.

Get Virtual Care

For Businesses

About Us

HealthTap Online Primary Care Doctors Accepting New Patients

Doctor answers about:

Down syndrome autosomal or sex linked

A member asked:

Is down syndrome autosomal or sex linked?

A member asked:

Is down syndrome sex-linked or autosomal?

A member asked:

Down syndrome is autosomal dominat?

A member asked:

Is down syndrome sex linked/recessive/or dominant?

A member asked:

Is down syndrome dominant , recessive , polygenic inheritance , multiple alleles , sex linked, codominance , or incomplete dominance ?

A member asked:

What is down syndrome?

A member asked:

Why is my baby down syndrome?

A member asked:

Why does down syndrome happen?

A member asked:

How can you inherit down syndrome?

A member asked:

How does a person get down syndrome?

HealthTap Online Primary Care Doctors Accepting New Patients

Telemedicine

Primary Care

Manage Your Conditions

Women's Health

Children's Health

Men's Health

Senior Health

Wellness, Prevention & Lifestyle

Sexual Health

Mental & Behavioral Health

Travel Medicine

Urgent Care

Didn't find what you're looking for?

More of what we treat

Allergies

Antibiotics

Asthma

High Blood Pressure

Prescriptions

Type 2 Diabetes

For Businesses

Company

Health Content

Join Us

Download HealthTap

Questions?