Genotype Delimiter Use this field to indicate the delimiter used to separate the alleles in a genotype . A “ / ” is specified by default. Note : If a blank space is the genotype delimiter, then you must type %str( ) in this field. To Specify the Delimiter Used: Select Genotype as the Format of Marker Variables . Type the delimiter in the text box. If you change your mind and would like to reset the field, click Clear .