Around 1875, the game of poker adopted the joker as a wild card. They have been a standard part of American playing card decks since the 1940s. Jokers as a Nickname for a Pair of Jacks. The second meaning of jokers is a slang term for a pair of jacks in Texas Hold'em.
Inheritance and Genetics of Intersex conditions. Genetics of Intersex conditions: Some intersex conditions are caused by chromosome deletions and duplications, while other conditions are due to specific chromosome mutations that may be inherited. Inheritance of Intersex conditions refers to whether the condition is inherited from your parents or runs in families. The level of inheritance of a condition depends on how important genetics are to the disease.
The inheritance pattern may be recessive or dominant. The trait determined by a gene on the X chromosome is always expressed in males. Transmission from father to son does not occur. Kinds of X-linked inheritance are X-linked-dominant inheritance and X-linked recessive inheritance. Compare autosomal inheritance. See also sex-linked.