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  2. 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.

  3. Tetrasomy X - Wikipedia

    en.wikipedia.org/wiki/Tetrasomy_X

    Tetrasomy X, also known as 48,XXXX, is a chromosomal disorder in which a female has four, rather than two, copies of the X chromosome.It is associated with intellectual disability of varying severity, characteristic "coarse" facial features, heart defects, and skeletal anomalies such as increased height, clinodactyly (incurved pinky fingers), and radioulnar synostosis (fusion of the long bones ...

  4. XYYY syndrome - Wikipedia

    en.wikipedia.org/wiki/XYYY_syndrome

    XYYY syndrome, also known as 48,XYYY, is a chromosomal disorder in which a male has two extra copies of the Y chromosome. The syndrome is exceptionally rare, with only twelve recorded cases. The presentation of the syndrome is heterogeneous, but appears to be more severe than its counterpart XYY syndrome.

  5. XYYYY syndrome - Wikipedia

    en.wikipedia.org/wiki/XYYYY_syndrome

    XYYYY syndrome, also known as 49,XYYYY, is an exceptionally rare chromosomal disorder in which a male human has three additional copies of the Y chromosome. Only seven non- mosaic cases of the disorder have ever been recorded in the medical literature, as well as five mosaic cases, of which two had more 48,XYYY than 49,XYYYY cells. [ 1 ]

  6. XXXYY syndrome - Wikipedia

    en.wikipedia.org/wiki/XXXYY_syndrome

    [16] 49,XXXYY was one of the later sex chromosome aneuploidies to be discovered, being preceded by Turner, [17] Klinefelter, [18] and trisomy X [19] in 1959, XXYY syndrome in 1960, [20] and XYY [21] and tetrasomy X [22] in 1961. The 49,XXXYY karyotype was not reported again until 1974, highlighting the rarity of the syndrome. [23]

  7. Syndromes affecting the heart - Wikipedia

    en.wikipedia.org/wiki/Syndromes_affecting_the_heart

    A syndrome is a set of medical signs and symptoms that are correlated with each other. A syndrome can affect one or more of body systems. Different syndromes affect different groups of organs. This is a list of syndromes that may affect the heart. Syndromes affecting primarily the heart are written in bold letters. [1] [2]

  8. XXXY syndrome - Wikipedia

    en.wikipedia.org/wiki/XXXY_syndrome

    XXXY syndrome is therefore often referred to as 48,XXXY. There is a wide variety of symptoms associated with this syndrome, including cognitive and behavioral problems, taurodontism, and infertility. [3] [2] This syndrome is usually inherited via a new mutation in one of the parents' gametes, as those affected by it are usually infertile. It is ...

  9. XXXXY syndrome - Wikipedia

    en.wikipedia.org/wiki/XXXXY_syndrome

    An infant in Iran diagnosed with 49,XXXXY syndrome was born with patent ductus arteriosus, which was corrected with surgery, and other complications that were managed with replacement therapy. [ 4 ] The administration of testosterone therapy has been shown to improve motor skills, speech, and nonverbal IQ in males with 49,XXXXY.

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