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People with Down syndrome have an extra copy of chromosome 21 in every cell. Down syndrome most often occurs when chromosomes fail to separate properly during meiosis, when sex cells form.
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∙ 12y ago
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∙ 11y agoyes
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What isa genetic disorder?
A genetic disorder is an abnormal condition that a person inherits through genes or chromosomes. an example is autism. human being
Is usher syndrome a gene or chromosomal?
Usher syndrome is a relatively rare genetic disorder caused by a mutation. The gene is not carried on one of the sex chromosomes (X or Y).
Is Tourette syndrome a single gene disorder?
The exact cause of Tourette syndrome is currently unknown, but it is well established that both genetic and environmental factors are involved. Genetic epidemiology studies have shown that the overwhelming majority of cases of Tourette syndrome are inherited, although the exact mode of inheritance is not yet known and no gene has been identified. It seems unlikely that only a single gene controls Tourette syndrome, most likely it is the result of some suite of interacting genes.
Which type of disorder is most difficult to correct by gene therapy?
Gene Therapy cannot treat · Phenylketonuria · Gaucher Disease · Lesch-Nyhan Syndrome · Urea Cycle Disorders · Duchenne Muscular Dystrophy
Who can get Down Syndrome?
Anyone can but it is passed through your gene's whilst the mother is carrying the child
What can down syndrome be caused by?
Down's Syndrome is caused mainly by a mutation in the gene. It is a genetic disorder, which means it was passed on from parents to offspring.
What isa genetic disorder?
A genetic disorder is an abnormal condition that a person inherits through genes or chromosomes. an example is autism. human being
What gene does bipolar disorder happen in?
There is not a single gene responsible for bipolar disorder that has been identified.
What are the causes of Noonan syndrome?
Noonan syndrome is caused by the mutation in a particular gene. It is a genetic disorder which means that the child which is born with this disorder, must have been in their parents.
Is there a specific gene for down syndrome?
No.
Is usher syndrome a gene or chromosomal?
Usher syndrome is a relatively rare genetic disorder caused by a mutation. The gene is not carried on one of the sex chromosomes (X or Y).
Is Tourette syndrome a single gene disorder?
The exact cause of Tourette syndrome is currently unknown, but it is well established that both genetic and environmental factors are involved. Genetic epidemiology studies have shown that the overwhelming majority of cases of Tourette syndrome are inherited, although the exact mode of inheritance is not yet known and no gene has been identified. It seems unlikely that only a single gene controls Tourette syndrome, most likely it is the result of some suite of interacting genes.
How is usher syndrome inherited?
Usher syndrome is inherited as an autosomal recessive trait. The term autosomal means that the mutated gene is not located on either of the chromosomes that determine a person's sex; in other words, both males and females can have the disorder and can pass along the disorder to a child. The word recessive means that to have Usher syndrome, an individual must receive a mutated form of the Usher syndrome gene from each parent. If a child has a mutation in one Usher syndrome gene but the other gene is normal, he or she is predicted to have normal vision and hearing. Individuals with a mutation in a gene that can cause an autosomal recessive disorder are called carriers, because they "carry" the gene with a mutation but show no symptoms of the disorder. If both parents are carriers of a mutated gene for Usher syndrome, they will have a one-in-four chance of having a child with Usher syndrome with each birth.
What gene or chromosome is affected by down syndrome?
Chromosome 21 is tripled in Down syndrome.
What is the gene that causes bipolar disorder?
unknown, its probably not a single gene but instead many
What is a Marfan Syndrome?
marfan syndrome is genetic disorder of connective tissue of the body. it cause a mutation of the gene that produces the protein fibrillin.
What is hurley syndrome?
Hurler Syndrome also known as (mucopolysaccharldosis)is a genetic disorder which is a hereditary defective gene. It is a rare, inherited disease of metabolism in which you cannot break down long chains of sugar molecules called glycosaminoglycan.
