Top
20
Doctor insights on: Is Down Syndrome A Dominant Or Recessive Trait

Share
1

1
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.

Dr. Kathryn Akin
650 Doctors shared insights

Down Syndrome (Definition)

A genetic chromosome 21 disorder causing ...Read more


2

2
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.

See 1 more doctor answer
3

3
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.

4

4
I am doing a presentation for my class on down syndrome and I need to know why it isn't dominant or recessive. P.S. I need a simplified answer

I am doing a presentation for my class on down syndrome and I need to know why it isn't dominant or recessive. P.S. I need a simplified answer

Seek info here: Lots of HT doctors have answered this for others - here's a start. Just dig a bit further, but it's a good reply. Source: HealthTap, https://edc1.healthtap. Com/user_questions/22610

See 1 more doctor answer
5

5
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.

6

6
What are the chances my child will be born with chromosomal abnormalities? I was told my unborn child has echogenic bowels, that I tested higher for the risk of Down syndrome and as a carrier of the cystic fibrosis trait

What are the chances my child will be born with chromosomal abnormalities? I was told my unborn child has echogenic bowels, that I tested higher for the risk of Down syndrome and as a carrier of the cystic fibrosis trait

There: There are several ultrasound findings that can suggest down sysndrome, and echogenic bowel is one of them. There could be other explanations for that finding, though. It sound like you will need some testing to find out what's going on. The two tests used most commonly are amniocentesis and chorionic villous sampling. Each has its own risks and benefits, so you should discuss them with your obstetrician. I would suggest that you do this sooner than later, and regardless of whether the outcome might lead you to terminate the pregnancy.

7

7
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.

9

9
Down syndrome is autosomal dominat?

Down syndrome is autosomal dominat?

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.

See 1 more doctor answer
10

10
I'm doing a science project on down syndrome and my teacher wants to know dominate recessive or chromosomal (how common) can you help?

I'm doing a science project on down syndrome and my teacher wants to know dominate recessive or chromosomal (how common) can you help?

Do your homework: There is a simple answer but this is not where you should go to get it. Your instructors are going to want you to provide your references to any data you come up with. Your question suggests you are too young to be submitting questions to HT. You must be 16.

See 1 more doctor answer
11

11
Is cystic fibrosis a dominant or recessive trait?

Is cystic fibrosis a dominant or recessive trait?

Recessive: One needs two defective copies of the cystic fibrosis to develop the disease.

12

12
Is gestational diabetes a dominant or recessive trait?

Is gestational diabetes a dominant or recessive trait?

Complex disease: Gestational diabetes (gdm), like type 2 diabetes, are related metabolic conditions with strong inherited genetic tendencies --- but multiple genes are involved in their expression (appearance in any person). So gdm is neither a dominant nor recessive trait. Whether a person gets gdm is also strongly impacted by age, weight, exercise levels, dietary factors, which are not genetically determined.

See 1 more doctor answer
13

13
Is having aortic valve regurgitation a dominant or recessive trait?

Is having aortic valve regurgitation a dominant or recessive trait?

Usually acquired: Aortic regurgitation is usually an acquired disease. Some forms of congenital vascular disorders are associated with aortic valve problems such as Marfan's Syndrome and this can involve the aortic valve. This is rare. Marfan's is inherited in an autosomal dominant pattern. Even more rarely it can also occur as a spontaneous mutation in someone who has no family history.

14

14
Is obesity a dominant or recessive trait?

Is obesity a dominant or recessive trait?

Explanation: Neither. Obesity do not have even cleat trait. Too many factors play roles: lifestyle and diet, physical activity are the most important.

15

15
Is it true that aortic valve regurgitation is a dominant or recessive trait?

Is it true that aortic valve regurgitation is a dominant or recessive trait?

AI: I am not aware of ai being genetically linked and can't find anything on line to point to say bicuspid valve inheritance as dominant or recessive.

16

16
My grandmother and my mother both have tested positive for celiac disease. Is this a dominant or recessive trait?

My grandmother and my mother both have tested positive for celiac disease. Is this a dominant or recessive trait?

Neither: While you may inherit the immune risk factor from a parent that does not guarantee getting Celiac disease. If you have a 1st degree relative with confirmed Celiac disease then there is roughly a 20% chance of developing it in your lifetime.

17

17
What do you suggest if my grandmother and my mother both have tested positive for celiac disease. Is it a dominant or recessive trait?

What do you suggest if my grandmother and my mother both have tested positive for celiac disease. Is it a dominant or recessive trait?

Genetic: You may carry the gene for celiac- It is not a dominant or recessive gene. It is a gene that is associate to a chromosome that has been identified. In order to get the condition, you need to have the gene and an environmental trigger. You can be tested to see if you have the gene. The DR8 gene profile is seen in a large part of the population and may explain why celiac is being seen often.

See 1 more doctor answer
18

18
What is the difference between an autosomal dominant and autosomal recessive trait?

What is the difference between an autosomal dominant and autosomal recessive trait?

Input required: In dominant disorders, the dominant member of the gene pair controls how the gene activities are expressed, so the other gene can carry the same or normal information. In recessive disorders, the normal gene compensates for the bad information in the other gene, allowing a person to function normally unless both genes carry the bad information.

19

19
How many ways can Down syndrome develop?

Extra 21 chromosome: The majority of down syndrome develops when the fertilized egg gets an extra number 21 chromosome from the mother. When that cell divides and forms an embryo, every one of the cells in the baby's body have that extra 21 chromosome. There are rare cases where a baby inherits an extra part of the 21 chromosome from one of it's parents. The extra genes on the 21 chromosome cause the down syndrome.

20

20
How to train children with down syndrome?

How to train children with down syndrome?

For an assessment: Of the child's developmental needs & toilet-training readiness, if < 3 yrs. Old, call Pam Barton, Franklin County Help Me Grow Coordinator at (614) 227-9860. If 3-5 yrs. Old, call Lynn Brannon, Director of Early Childhood Special Education at (614) 542-4106. At the same time, call (614) 355-8080 for an evaluation at the Down Syndrome Clinic, Nationwide Children's Hospital, (614) 355-8080.

See 1 more doctor answer