1500 SNPs with P2), but they do not have the deletion. One can deduce from the family relationship that the grandfather (GF) has the deletion, and the mutation event occurred either at the meiosis of GF or GGM. By phasing R1 to R3, the haplotype of the 51 SNPs that were deleted in P1 and P2 could be reconstructed together with the haplotype background of over 4000 SNPs.
