Get Virtual Care
For Businesses
About Us
A member asked:
Is down syndrome dominant , recessive , polygenic inheritance , multiple alleles , sex linked, codominance , or incomplete dominance ?
5 doctors weighed in across 2 answers
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
Answered 3/10/2016
1.7k views
None of these: Extra chromosome. Your teacher should be able to explain why the others are wrong.
Answered 5/12/2016
1.7k views
Related Questions
A member asked:
Can you have cystic fibrosis if you have two recessive alleles?
2 doctors weighed in across 2 answers
A member asked:
I was wondering is Down syndrome dominant or recessive?
A doctor has provided 1 answer
A member asked:
Is it true that Down syndrome is dominant or recessive?
A doctor has provided 1 answer
People also searched for:
Is neurofibromatosis a polygenic disorder, or is there a single mutation?
Can you tell me why the major histocompatibility complex of genes is considered to be both polygenic and polymorphic.?
What is the qualification criteria for LDL apheresis? Can pt w/o familial hyperlipidemia genes but high LDL (at 207mg/dl, 90+%), high lipoprotein A (at 84 mg/dl, 89%), strong family hx of ASCVD and high polygenic risk for CVD, high LDL,/LPs qualify?
Does a dominant or recessive allele cause severe combined immunodeficiency?
Is dwarfism caused by a recessive or dominant allele?
Didn't find what you're looking for?
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your questionMore of what we treat
Download HealthTap
Video visit and message your doctor
