0
Tay-Sachs in infants is extremely lethal. Problems with motor function and sensory organs begin at around 7 months or so. Seizures occur around the age of 2. Death occurs when the infant reachs 5 years old.
Tay-Sachs in adults, however, is not necessarily lethal. Many of the disorders remain the same as they do in infants but the disease does not normally cause death in adults.
Yes, Tay-Sachs Disease is almost always fatal. The baby diagnosed dies normally within the first 3-5 months. If you have late onset Tay-Sachs LOTS), normally found in young adults, it will usually not affect one's lifespan. Tay-Sachs Disease is found mostly in Jewish communities, but also in Easters European communities.
Add your answer:
Earn +20 pts
Does TaySachs disease have a dominant or a recessive trait?
recessive
Is Lyme disease lethal?
yes, if untreated
What was the most lethal infectious disease of 1990?
Pneumonia
What is the most lethal infectious disease of 1990?
pneumonia
Is Rabies a non-lethal disease?
Unless treated, Rabies is lethal. I messes with the brain and does not allow the infected organism to properly function.
What is an example of a lethal dominant mutation?
Huntington's disease is an example of a lethal dominant mutation. It is a neurodegenerative disorder caused by a dominant mutation in the HTT gene, leading to progressive loss of motor and cognitive functions, eventually resulting in death.
A recessive lethal gene exists in a population and remains for several generations Which woman could have passed the recessive lethal allele to offspring but not have the disease herself?
a woman who is heterozygous for the gene
How was mumps first used?
Mumps wasn't used as anything. Mumps is a disease, and was at first very lethal.
What is kernicterus?
Kernicterus-- A potentially lethal disease of newborns caused by excessive accumulation of the bile pigment bilirubin.
How do dominant lethal alleles persist in populations even though their fitness is essentially zero?
Dominant lethal alleles can persist in populations because they are only lethal when present in homozygous form, which is rare in populations. These alleles can be carried in heterozygous individuals and remain hidden from natural selection. Additionally, mutations introducing dominant lethal alleles can occur continuously in a population, maintaining their presence.
What was often the most lethal European disease that was brought to the Americas?
The winner of that dubious honor would probably be Smallpox.
Why are the red squirells endangered in Britain?
Because the grey squirell carries a disease that is not harmful to them, but is lethal for red squirells.
