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Is fragile x syndrome a result of nondisjunction during meiosis?
Wiki User
∙ 11y ago
yes . it is . nondisjunction is takes place during meiosis.
Wiki User
∙ 11y ago
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What is the failure of chromosome pairs to separate properly during meiosis?
Nondisjunction
What causes disorders sush as klinefelter syndrome and turner syndrome?
non disjunction of sex chromosomes
What does klinefelters syndrome come from what type of mutation?
Nondisjunction, or sending both chromosomes to one cell during meiosis.
The faillure of chromosomes to separate during meiosis is called?
Its called disconjunction. Sometimes it is so bad that they have a miscarriage or the following happens:Trisomy (extra chromosomeso have 47 chromosomes instead of 46)Down's syndrome (andextra number 21 chromosome)Klinefelter's syndrome (males with an extra X chromosome...XXY)
What effects does nondisjunction have on the body if it occurs during mitosis What problems can an individual have if they have nondisjunction in somatic cells?
Autosomal nondisjunction is the most prolific cause of trisomy 21, or down syndrome, a defect that usually occurs during meiosis 1, but can occur during 2 as well.
Are there carrier forms of xxx syndrome?
no there r no carrier forms for triple x syndrome. this is just a nondisjunction during meiosis of gametogenesis. this can happen with either spermatogenesis or ovariogenesis
What is nondisjunction and why is it harmful?
Nondisjunction is the failure of a homolog to separate during meiosis causing trisomy (an extra chromosome) or monosomy (a missing chromosome), it can be harmful because it is a mutation that can cause many devastating disease, for example nondisjunction of the 21st chromosome causes down syndrome, another example of nondisjunction being harmful, is nondisjunction of the sex chromosomes, causing Turner's or Klinefelter's syndrome two very devastating diseases.
What is it called when chromosomes don't separate correctly during meiosis?
Nondisjunction
Nondisjunction occurs when?
homologous chromosomes fail to separate during meiosis
What are nondisjunction genes?
Nondisjunction is the failure of homologous chromosomes or chromatids to segregate during mitosis or meisos with the result that one daughter cell has both of a pair of parental chromosomes or chromatids and the other has none. An example is Trisomy 21, which is also called Down's Syndrome. This person has 3 chromosome #21.Nondisjunction of genes occur during meiosis I when homologous chromosomes fail to separate or during meiosis II when there is unequal distribution of chromosomes. This leads to aneuploidy.
Where can you find information about someone who has both Down syndrome as well as Klinefelter's syndrome?
Causes of Klinefelter SyndromeThe additional sex chromosomes in men with Klinefelter syndrome results from nondisjunction during meiosis and may have a paternal (50 to 60 percent) or maternal (40 to 50 percent) origin. This contrasts with Down syndrome, which is caused predominantly by maternal nondisjunction and inheritance of the extra chromosome 21 from the mother.
When chromosome pair fail to separate properly during meiosis the error is called?
Nondisjunction.
