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Down syndrome often occurs when chromosomes fail to separate properly during meiosis.
Wiki User
∙ 10y ago
Wiki User
∙ 11y agoChromosomes fail to seperate
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Is down syndrome a single gene disorder?
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. Hope this helps!!
How are cells of a person with Down syndrome different from those of a person without the disorder?
In Down syndrome, a person's cells have an extra copy of chromosome 21. In other words, instead of a pair of chromosomes, a person with Down syndrome has three of that chromosome. Down syndrome most often occurs when chromosomes fail to separate properly during meiosis. People with Down syndrome have a degree of mental retardation. Heart defects are also common, but can be treated.
How are the cells of a person with Down syndrome different from those of a person without Down syndrome?
In Down syndrome, a person's cells have an extra copy of chromosome 21. In other words, instead of a pair of chromosomes, a person with down syndrome has three of that chromosome. Down syndrome most often occurs when chromosomes fail to separate properly during meiosis. People with down syndrome have a degree of mental retardation. Heart defects are also common, but can be treated.
How are the cells of a person with down syndrome different from those of Person without the disorder?
In Down syndrome, a person's cells have an extra copy of chromosome 21. In other words, instead of a pair of chromosomes, a person with down syndrome has three of that chromosome. Down syndrome most often occurs when chromosomes fail to separate properly during meiosis. People with down syndrome have a degree of mental retardation. Heart defects are also common, but can be treated.
How are the cells from a person with down syndrome different from a person without the disorder?
In Down syndrome, a person's cells have an extra copy of chromosome 21. In other words, instead of a pair of chromosomes, a person with Down syndrome has three of that chromosome. Down syndrome most often occurs when chromosomes fail to separate properly during meiosis. People with Down syndrome have a degree of mental retardation. Heart defects are also common, but can be treated.
When does Down syndrome most often occur?
Down's syndrome is increased with advanced maternal age, which is defined as more than 35 years of age.
What is the most common form of nerve entrapment?
The most common entrapment syndrome is carpal tunnel syndrome . Cubital tunnel syndrome of the ulnar nerve, which runs down the arm and through the elbow, also occurs frequently.
Is down's syndrome inherited?
Most cases of down syndrome are not inherited. Translocation Down syndrome can be inherited.
Why has the incidence of toxic shock syndrome declined?
Toxic shock syndrome most often occurs in menstruating women using highly absorbent tampons. The incidence of toxic shock syndrome has declined markedly since this type of tampon was withdrawn from the market.
Which type of succession occurs most often and why?
Secondary succession occurs most often
How does down syndrome affect you intellectual?
Down syndrome is the most common genetic cause of learning disabilities in children. People with Down syndrome often have trouble remembering things they have learned and have no motivation to remember things that has no physical meaning to them. Down syndrome causes mild to severe mental retardation. Mental retardation is recognized as impaired learning, social, and vocational ability. This means that cognitive development is stunted. Children with Down syndrome often have to learn in special Ed classes, as normal classes may not be meeting the child's learning needs. Although individuals with Down syndrome can graduate high school, most will only have the IQ of an 8 year old. Another common problem with cognitive development for children with Down syndrome is the ability to generalize - to apply what they have learned in one a situation to another situation. Children with Down syndrome often have to be taught one thing multiply times. Short attention spans have been noted in children with Down syndrome.
What human disease is caused by non-disjunction?
Down's syndrome is the most common.
