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  2. XYY syndrome - Wikipedia

    en.wikipedia.org/wiki/XYY_syndrome

    XYY syndrome, also known as Jacobs syndrome, is an aneuploid genetic condition in which a male has an extra Y chromosome. [1] There are usually few symptoms. [2] These may include being taller than average and an increased risk of learning disabilities. [1] [2] The person is generally otherwise normal, including typical rates of fertility. [1]

  3. 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 ]

  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. XY gonadal dysgenesis - Wikipedia

    en.wikipedia.org/wiki/XY_gonadal_dysgenesis

    XY complete gonadal dysgenesis, also known as Swyer syndrome, is a type of defect hypogonadism in a person whose karyotype is 46,XY. Though they typically have normal vulvas , [ 1 ] the person has underdeveloped gonads, fibrous tissue termed " streak gonads ", and if left untreated, will not experience puberty .

  6. Disorders of sex development - Wikipedia

    en.wikipedia.org/wiki/Disorders_of_sex_development

    Disorders of sex development (DSDs), also known as differences in sex development or variations in sex characteristics (VSC), [2] [3] are congenital conditions affecting the reproductive system, in which development of chromosomal, gonadal, or anatomical sex is atypical. [4]

  7. What is DSD? Rare condition explained after Imane Khelif ...

    www.aol.com/dsd-rare-condition-explained-imane...

    NHS. Claus Højbjerg Gravholt, a professor of genetic endocrinology, said it is impossible to state everyone with a Y chromosome is a male and everyone with an X chromosome is a female.

  8. Sexual differentiation in humans - Wikipedia

    en.wikipedia.org/wiki/Sexual_differentiation_in...

    Most mammals, including humans, have an XY sex-determination system: the Y chromosome carries factors responsible for triggering male development. In the absence of a Y chromosome, the fetus will undergo female development. This is because of the presence of the sex-determining region of the Y chromosome, also known as the SRY gene. [5]

  9. Woman genetically born as a man gives birth - AOL

    www.aol.com/news/2015-02-02-woman-genetically...

    That's when they discovered she was born with an extremely rare medical condition called androgen insensitivity syndrome. She told Good Morning Britain, "Genetically, I have XY chromosomes so the ...