Figure 7.3 Complex kinship test using X-chromosomal STR haplotyping. Calculation was made to compute the likelihood that Mike and Jim are cousins (hypothesis H0) versus unrelated males (H1). The four STR clusters have been considered as unlinked markers. A likelihood ratio of 380 was obtained in favour of H0, which implies that, assuming equal prior odds, the probability of Mike being a cousin of Jim equals 380/(1 + 380) = 0.997 (or 99.73%)
exhibit the ChrX haplotype with respect to two STR pairs (not shaded), we were able to demonstrate that putative cousins share a common grandfather.
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