Enter the characters representing marker allele A (allele from P1) and B (allele from P2), separated by a space. This option applies when the Format of Marker Variables is Genotypes, Nondelimited Genotypes, or Single-Character Homozygous Genotypes.
Type the characters, separated by a space, into the text field.For example, specifying A B indicates that A represents the marker allele inherited from P1 and B is the marker allele inherited from the P2 line.