Asked in Biology
Recessive disorder that results from the absence of an enzyme required to break lipids down?
What is the difference between a genetic disorder and a genetic mutation?
Mutation is any change in the genetic code of an individual regardless of how the change manifests. A genetic disorder is the result of an unfavorable mutation that results through through heterozygous recessive parents producing a homozygous recessive offspring, a random dominant mutation, or multiple polygenic mutations that compound for a negative effect on an individual as examples. ...
Asked in Conditions and Diseases, Genetics
Which disease is an inherited condition characterized by the absence of a single lysosomal enzyme called Hex A?
Tay–Sachs disease is caused by a genetic mutation in the HEXA gene on (human) chromosome 15. It is a rare autosomal recessive genetic disorder. And not sex-linked. it causes a progressive deterioration of nerve cells and of mental and physical abilities that begins around six months of age and usually results in death by the age of four. Two Tay–Sachs alleles are required for an individual to exhibit symptoms of the disease. This means that both parents must be carriers. ...
Asked in Genetics, Tay-Sach's Disease
Is Tay-Sach Disease sex-linked dominate or recessive?
Tay-Sachs disease is caused by a genetic mutation in the HEXA gene on (human) chromosome 15. It is is a rare autosomal recessive genetic disorder and not sex-linked. Two Tay-Sachs alleles are required for an individual to exhibit symptoms of the disease. It causes a progressive deterioration of nerve cells and of mental and physical abilities that begins around six months of age and usually results in death by the age of four. ...
Asked in Chemistry
A chemical whose absence from the diet for a long time results in specific changes in health is?
A chemical whose absence from the diet for a long time results in specific changes in health is a nutrient. Nutrients come in many different forms. ...
Asked in Conditions and Diseases
What is anacephaly?
Anencephaly is a cephalic disorder that results from a neural tube defect that occurs when the cephalic (head) end of the neural tube fails to close, usually between the 23rd and 26th day of pregnancy, resulting in the absence of a major portion of the brain, skull, and scalp. ...
Asked in Genetics, Science Experiments, Gregor Mendel
What were some of the results of Mendel's experiments?
That the F1 generation had offspring without any recessive genes showing. The F2 generation has a 3:1 ratio of the recessive gene showing in the offspring ...
Is adrenoleukodystrophy dominant or recessive?
This disease results from a mutation on the x-chromosome. It's recessive considering that a dominant will only cover up things that have occur, for example the damage that has occured, with something else. A recessive will continue to give latent traits. The allele in Adrenoleukodystrophy can only be caused by heredity mutation thus making it recessive. ...
Asked in Genetics
what happens in the absence of a chromosome?
Generally, absence of a chromosome results in EED (early embryonic death). The exception is the absence of one of the sex chromosomes. While a Child born with a single X chromosome has some physiologic deficits they can survive into adulthood. ...
What are routine tests with high ferritin levels?
Routine tests with high ferritin levels can be an indication of an iron storage disorder. One such disorder is hemochromatosis. This is a genetic disorder that results in iron-overload in the body. ...
Asked in Health, Mental Health, Schizophrenia
Is schizoaffective disorder fatal?
Schizoaffective disorder is a very serious mental disorder. It is not fatal like a heart attack is fatal, but results of behaviors can be fatal. For example, if the person is involved in dangerous behaviors, or is suicidal. ...