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  2. 45,X/46,XY mosaicism - Wikipedia

    en.wikipedia.org/wiki/45,X/46,XY_mosaicism

    45,X/46,XY mosaicism, also known as X0/XY mosaicism and mixed gonadal dysgenesis, [1] is a mutation of sex development in humans associated with sex chromosome aneuploidy and mosaicism of the Y chromosome. It is a fairly rare chromosomal disorder at birth, with an estimated incidence rate of about 1 in 15,000 live births. [2]

  3. Gonadal dysgenesis - Wikipedia

    en.wikipedia.org/wiki/Gonadal_dysgenesis

    Gonadal dysgenesis is classified as any congenital developmental disorder of the reproductive system characterized by a progressive loss of primordial germ cells on the developing gonads of an embryo. [1] [2] One type of gonadal dysgenesis is the development of functionless, fibrous tissue, termed streak gonads, instead of reproductive tissue. [3]

  4. 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 .

  5. Disorders of sex development - Wikipedia

    en.wikipedia.org/wiki/Disorders_of_sex_development

    Gonadal dysgenesis – any congenital developmental disorder of the reproductive system characterized by a progressive loss of primordial germ cells on the developing gonads of an embryo. Herlyn-Werner-Wunderlich syndrome – a disorder where the Müllerian ducts fail to fuse during embryonic development. Leading to the presence of 2 vaginas, 2 ...

  6. XX gonadal dysgenesis - Wikipedia

    en.wikipedia.org/wiki/XX_gonadal_dysgenesis

    XX gonadal dysgenesis is a type of female hypogonadism in which the ovaries do not function to induce puberty in a person assigned female at birth, whose karyotype is 46,XX. [1] Individuals with XX gonadal dysgenesis have normal-appearing external genitalia as well as Müllerian structures (e.g., cervix, vagina, uterus).

  7. 5α-Reductase 2 deficiency - Wikipedia

    en.wikipedia.org/wiki/5α-Reductase_2_deficiency

    Two different genes, each with five exons and four introns, designated as SRD5A1 and SDR5A2, encode two different 5α-reductases. The human 5α-reductase-2 gene (SRD5A2) is located on the short arm of chromosome 2 at band 23 and encodes a 254 amino acid protein, called 5α-reductase type 2.

  8. 50 Of The Wildest And Cutest Genetic Mutations Ever ... - AOL

    www.aol.com/111-rarest-genetic-mutations-ever...

    They come in all shapes and sizes. Some walk, some slither, some fly and some swim. Humans are blessed to share the planet with just over 2.1 million recognized species of animals.And scientists ...

  9. 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]