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  2. Cryptorchidism - Wikipedia

    en.wikipedia.org/wiki/Cryptorchidism

    Dog testes usually descend by 10 days of age and it is considered to be cryptorchidism if they do not descend by the age of eight weeks. [23] Cryptorchidism can be either bilateral (causing sterility) or unilateral, and inguinal or abdominal (or both). Because it is an inherited trait, affected dogs should not be bred and should be castrated ...

  3. Ridgling - Wikipedia

    en.wikipedia.org/wiki/Ridgling

    Funny Cide was a ridgling who was gelded and went on to become a champion race horse. A ridgling (also spelled ridgeling), [1] or rig, is a cryptorchid; [2] a male animal with one or both testicles undescended, [1] usually describing a ram, bull, or male horse, [3] but cryptorchidism also can be an issue in dogs and cats. [4]

  4. Persistent Müllerian duct syndrome - Wikipedia

    en.wikipedia.org/wiki/Persistent_Müllerian_duct...

    The genetic mutational cause of PMDS, is a 27 base-pair deletion of the Anti-Müllerian Type 2 Receptor gene. The 27-base-pair deletion that occurs PMDS is in exon 10 on one allele. [ 9 ] With the AMHR2 gene mutation (PMDS Type 2), the AMHR2 is either not produced, produced in deficient amounts, defective, or the Müllerian ducts manifested a ...

  5. Testicular dysgenesis syndrome - Wikipedia

    en.wikipedia.org/wiki/Testicular_dysgenesis_syndrome

    This has genetic, environmental, and lifestyle components, however the rapid increase in the incidence of the disorders associated with TDS in the last decades [3] indicates that it is under a powerful environmental influence. The fetal origins of TDS are reinforced by the high incidence of TDS disorders found occurring together in one individual.

  6. Cryptorchidism-arachnodactyly-intellectual disability syndrome is a rare multi-systemic genetic disorder of unknown prevalence which is characterized by psycho-motor developmental delay, severe intellectual disabilities, severe muscle hypoplasia, absence of subcutaneous fat, generalized contractures, dolichocephaly, esotropia, asymmetric ears, and high palate, kyphoscoliosis, unilateral ...

  7. Cell wall - Wikipedia

    en.wikipedia.org/wiki/Cell_wall

    A plant cell wall was first observed and named (simply as a "wall") by Robert Hooke in 1665. [3] However, "the dead excrusion product of the living protoplast" was forgotten, for almost three centuries, being the subject of scientific interest mainly as a resource for industrial processing or in relation to animal or human health.

  8. Leydig cell hypoplasia - Wikipedia

    en.wikipedia.org/wiki/Leydig_cell_hypoplasia

    The symptoms of Leydig cell hypoplasia include pseudohermaphroditism, i.e., feminized, ambiguous, or relatively mildly underdeveloped (e.g., micropenis, severe hypospadias, [6] and/or cryptorchidism [undescended testes]) external genitalia, a female gender identity or gender variance, hypergonadotropic hypogonadism (hypogonadism despite high levels of gonadotropins), delayed, impaired, or ...

  9. Development of the gonads - Wikipedia

    en.wikipedia.org/wiki/Development_of_the_gonads

    The embryological origin of granulosa cells remains controversial. In the 1970s, evidence emerged that the first cells to make contact with the oogonia were of mesonephric origin. It was suggested that mesonephric cells already closely associated with the oogonia proliferated throughout development to form the granulosa cell layer. [2] [3] [4]