Incomplete Sex Linkage in Man 



199 



taneous bleeding from the nose, uterus, and mucous membranes. 

 Another incompletely sex-linked gene is one for idiopathic con- 

 vulsive disorder. Children first show the trait when about one 



TABLE 6 



A List of Nine Genes That Are Probably Incompletely Sex-Linked 



IN Man 

 (Compiled from Haldane, Kaliss and Schweitzer, and Snyder and Palmer.) 



year old. A series of spasms appear which last for a few min- 

 utes and are followed by unconsciousness for a half hour to an 

 hour. Spasms recur in cycles, and the children begin to de- 

 generate physically and mentally. They usually die between 



