Minor Allele Frequency at Marker Locus Use this text box to specify the frequency of the minor allele at the Marker locus . The value entered must be between 0.0 and 1.0 . A frequency of 0.05 is specified by default. Note : This parameter is not available unless the Marker locus is disease locus box is unchecked . To Specify the Minor Allele Frequency: Make sure that the Marker locus is disease locus box is unchecked . Type the minor allele frequency value in the text box.