LDR-FMA analysis of a series of HB3 and Dd2 mixed genomic DNA preparations at two loci on the dhps gene, neighboring codons 436 (S or F) and 437 (A or G). The six genomic DNA preparations were arranged to carry HB3/Dd2 ratios of 12,500:12, 3,150:48, 781:195, 195:781, 48:3,150, and 12:12,500 parasitized erythrocytes per μl, respectively.