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It is neither recessive nor dominant because it is a chromosomal disorder and not just a problem present in a single gene.

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15y ago

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Why is tay sachs is considered recessive level and codominant at the molecular level?

The part of tay sachs that kills you is recessive. Some proteins are still expressed even if you are a heterzygous carrier of tay sachs (less than if you are homozygous recessive but more than homozygous dominant) making the molecular view of tay sachs codominant.


Is tay-sachs caused by codominant alleles?

No, autosomal recessive


Is Tay Sachs contagious?

no, it is an inhereted disease and is also recessive.


Is Tay Sachs disease a dominant lethal allele?

I believe it is an autosomal recessive disorder, meaning it is only apparent with a homozygous recessive genotype. But i could be wrong (i loathe biology). oh really?


Is Tay-Sachs disease recessive?

Yes. In order to develop Tay-Sachs, you must inherit the gene for it from BOTH parents. If you inherit from ONE parent, you can be a carrier, but will not develop the disease. If BOTH parents are carriers, your odds of inheriting Tay-Sachs is 1-4. Other genetic diseases, such as Huntingtons, are carried on a dominant gene- If one parent has gene, odds are 1-2. Link at the bottom of the page for more information on Tay-Sachs:


How does someone get an autosomal recessive disorder such as Tay Sachs?

You must inherit two recessive alleles, one from each parent.


What is a good sentence for recessive gene?

A recessive gene is one that does not show outwardly unless the organism has two copies of it. If you have only one copy of a recessive gene, your appearance is that of the dominant gene. Here are some sentences.Red hair is caused by a recessive gene.The baby had two recessive genes for Tay-Sachs disease, and did not live.You cannot tell if someone has a recessive gene just by looking at them.


Is alzheimer's disease sex linked or autosomal?

Tay-sachs is autosomal.


What are facts about tay-sachs?

It was named after doctors Warren Tay and Bernard Sachs.


How is Tay Sachs Disease inherited?

A mutation of the HEX A gene of chromosome 15 causes Tay-Sachs disease. As a result, the protein hexosaminidase A is not formed properly and GM2 ganglioside, the lipid normally broken down by hexosaminidase A, accumulates to toxic levels (especially in the brain).


How many people in the United States of Jewish ancestry are carriers of Tay-Sachs disease?

Tay-Sachs disease has a recessive pattern of inheritance, and approximately 1 in every 27 people of Jewish ancestry in the United States carries the TSD gene.


What are the possible genotypes of parents with tay sachs disease?

50-50. Each parent contributes one pair of genes to their offspring. HD is carried on a Dominant gene. If your father has HD, you may inherit the recessive gene (No HD) or the dominant gene (HD). Odds are exactly even.