Doctor insights on:
Recessive Allele Cause
It's complicated: In short, you ask a good question, but the answer is much more complicated. There are different types of severe combined immunodeficiency (scid). Some are autosomal, and some are x-linked. Many require homozygous changes, others can occur with genetic compounds. None are "autosomal dominant". ...Read moreSee 1 more doctor answer
It depends: It depends on what one means by dwarfism: a short stature in general (this depends on your ethnic origin as well) or a genetic syndrome which involves extremely short stature as part of the clinical picture. Some of them are dominant = inherited from a parent or rose spontaneously (de novo) in the individual. Some of them are recessive (=parents unaffected carriers of the condition). ...Read more
ABO blood type: In this system of red cell antigens, O is considered to be recessive. Someone with type O blood would have two O alleles. People with type A blood can have two A alleles or one A allele and one O allele. Same with blood type B. This makes O the recessive and A and B are dominant. ...Read more
Is down syndrome dominant , recessive , polygenic inheritance , multiple alleles , sex linked, codominance , or incomplete dominance ?
Yes: Yes.Get a more detailed answer ›
Molecular Methods: Identifying alleles associated with disease can be done by numerous different methods depending on the type of genetic alteration. Gene sequencing is often the gold standard. However, for disease caused by deletion or insertion of a segment of DNA, a technique called Fluoresense In Situ Hybridization is used. For detection of single base pair changes numerous different techniques can be used ...Read more
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