IBS distributions of unrelated and related pairs (UR, PC, and FS, in dotted lines) and pairs of the true profile versus the consensus profile with a given number of cells (in solid lines) based on (a) diploid cells and (b) haploid cells. D = 0.2; e = 0.01; 1,000,000 simulations for each distribution. The IBS of “n cell(s)” is the IBS between true genotypes and the consensus genotypes from n cell(s). These distributions are based on 21 GlobalFiler markers and thus the maximum IBS is 42. The consensus profile might contain missing alleles, and these missing alleles were excluded in counting IBS.