thus in the case when n genetic markers being used , the disagnosable rate , or the fraction of matings in which the a2a2 fetus could be confirmed or ruled out by the fetal restriction fragment patterns in the a1a2 x a1a2 matings , is expressed as follows : [ formula : see text ] where a2 is a recessive deleterious gene , yi is the frequency of the genotype of ith type individuals , and m is the total number of combination of n markers .
C0017393
genetic markers
C0005516
markers