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.
In families linked to a mutated HPCX gene, the defect is always passed on from the mother: In this case, a father cannot pass the disease to his son. (X and Y are the sex chromosomes, and they distinct pattern of inheritance. Fathers always pass along the Y chromosome to their sons.