4,503
edits
Changes
→Hermaphroditism
* The tract is predominantly female, although there is often an enlarged clitoris and reduced vulval lips.
* The tract is predominantly female, although there is often an enlarged clitoris and reduced vulval lips.
* Usually XX with H-Y antigen (protein normally coded for by Y chromosome).
* Usually XX with H-Y antigen (protein normally coded for by Y chromosome).
----
== Pseudohermaphroditism ==
* Gonads are of one sex and the ducts and external genitalia are modified towards, or are of, the opposite sex.
** '''Male pseudohermaphrodite''': Testis-like gonads and predominantly female genitalia.
*** Commonly found amongst pigs (and goats).
*** Affected animals behave like males and may mount.
*** There is a sub-anal genital opening with a prominent clitoris.
*** Testes may be in a scrotal structure or intra abdominal.
*** Poorly developed uterine horns which may contain mucus-like secretion.
** '''Female pseudohermaphrodite''': Ovary-like gonads and male-like genitalia,rare.
'''''Aetiology'''''
* '''Genetic'''
** In goats the characteristic is linked to a gene for polledness (dominant).
** Chromosomal studies in pigs, goats and dogs (Cocker Spaniels) have shown that most pseudohermaphrodites are basically genetic female (XX sex reversal) despite the testis-like nature of their gonads.
* '''XY gonadal dysgenesis (testicular feminisation syndrome)'''
** Recognised in cattle and horses
** Individuals are male pseudohermaphrodites with elevated testosterone levels.