Specify the maximum number of missing genotypes for a locus to be included in the output data set Specify the cutoff for the greatest number of samples with a missing genotype in which any particular locus can be included in the output. Note that a missing genotype at a locus might indicate the sample is homozygous for the reference allele . To Specify the Maximum Number of Missing Genotypes for Locus Inclusion: Either type a value directly into the text box, or left-click and drag the slider to the left or right.