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Does everyone with Tay Sachs Disease have exactly the same allele Explain?
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What is it called when you have only one dominant allele to get the disease?
if an indivigual has a dominent allele for a disease he/she is an affected individual.
Is the allele causing huntington's disease dominant or recessive?
Huntington's disease is caused by a dominant allele
How a genetic disease can suddenly appear in a family with no previous history of the disease?
It could happen in two main mechanisms: 1) the allele responsible for the disease is recessive and so each of the parents are healthy portators of the allele (heterozygous), and all the sons which are homozygous for the allele (i.e. have two copies of the allele), with a frequency of 1:4, will be affected by disease, but not the others (heterozygouses and homozygouses for the good allele or wild type). 2) the mutation responsible for the disease (that acts in a dominant manner) is not present in any of the parents but happens only during the formations of gametes, and so will be transmitted to the son. There are also other mechanisms that are less frequent and more difficult to explain in a few words.
Will every individual who inherits the allele for Huntington's disease develop the disease?
Yes, Huntington's disease is autosomal dominant with high penetrance. Every individual who inherits the allele gets the disease.
A person can be tested for the allele that causes Tay-Sachs disease because the what of that allele is different from that of the normal allele?
DNA sequencing
What is a type of degenerative disease cause be a dominant allele?
Huntington's Disease.
What disease is caused by a dominant allele of a single gene?
Huntington's Disease
Which condition is inherited a dominant allele?
Huntington's Disease
What type of allele causes huntington disease?
The allele that causes Huntington's disease is dominant. This means that there only needs to be one present in the gene for it to show in the person's phenotype.
What is the allele for Glaucoma disease?
Men- XgY(g here if the y chromesome carries the allele) Women-XgXg
What is A herterozygous individual who has one allele for a disease but is not affected by it?
a carrier
Suppose this pedigree is for a disease called Huntington's disease. The allele for this disease is dominant. How many of the males shown in the pedigree can be expected to have or develop the disease?
four
