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  2. XYY syndrome - Wikipedia

    en.wikipedia.org/wiki/XYY_syndrome

    There are 47 chromosomes, instead of the usual 46, giving a 47,XYY karyotype. [1] Treatment may include speech therapy or extra help with schoolwork, however outcomes are generally positive. [2] The condition occurs in about 1 in 1,000 male births. [1] Many people with the condition are unaware that they have it. [4]

  3. Klinefelter syndrome - Wikipedia

    en.wikipedia.org/wiki/Klinefelter_syndrome

    Klinefelter syndrome (KS), also known as 47,XXY, is a chromosome anomaly where a male has an extra X chromosome. [10] These complications commonly include infertility and small, poorly functioning testicles (if present).

  4. XYYY syndrome - Wikipedia

    en.wikipedia.org/wiki/XYYY_syndrome

    Though a 48-chromosome complement involving the autosomes would be unsurvivable, 48,XYYY and other high-level sex chromosome aneuploidies such as XXXY syndrome and tetrasomy X—or indeed 49-chromosome disorders such as pentasomy X—are survivable with relatively mild phenotypes due to the paucity of genes vital to basic development on the sex ...

  5. XX male syndrome - Wikipedia

    en.wikipedia.org/wiki/XX_male_syndrome

    XX male syndrome, also known as de la Chapelle syndrome, is a rare intersex condition in which an individual with a 46,XX karyotype develops a male phenotype. [2] Synonyms for XX male syndrome include 46,XX testicular difference of sex development (or 46,XX DSD) [3] [4] [5] [6]

  6. XXYY syndrome - Wikipedia

    en.wikipedia.org/wiki/XXYY_syndrome

    48,XXYY syndrome is a condition related to the X and Y chromosomes (the sex chromosomes). People normally have 46 chromosomes in each cell. Two of the 46 chromosomes, known as X and Y, are called sex chromosomes because they help determine whether a person will develop male or female sex characteristics. Females typically have two X chromosomes ...

  7. Trisomy X - Wikipedia

    en.wikipedia.org/wiki/Trisomy_X

    Trisomy X, also known as triple X syndrome and characterized by the karyotype [note 1] 47,XXX, is a chromosome disorder in which a female has an extra copy of the X chromosome. It is relatively common and occurs in 1 in 1,000 females, but is rarely diagnosed; fewer than 10% of those with the condition know they have it.

  8. FOX Nation host Rachel Campos-Duffy, 47, confirms 9th baby ...

    www.aol.com/entertainment/fox-nation-host-rachel...

    FOX Nation host Rachel Campos-Duffy, 47, confirms 9th baby was born with heart defect, Down syndrome ... Valentina was also born with an extra chromosome, which means she also has Downs syndrome ...

  9. Polysomy - Wikipedia

    en.wikipedia.org/wiki/Polysomy

    The result is a genetic condition in which a person has 47 chromosomes instead of the usual 46. During egg or sperm development the 21st chromosome does not separate during either the egg or sperm development. The result is a cell that has 24 chromosomes. This extra chromosome may cause problems with the manner in which the body and brain ...