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. 2004 Aug 20;75(4):571–586. doi: 10.1086/424528

Table 1.

Joint Distribution of SA and SD1+SD2a

SA SD1+SD2 Sad Joint Distribution
0 2 −1 ΔmΔf
1 3 - 1/2 Δm+Δf-3ΔmΔf
2 4 0 Inline graphic
1 1  1/2 ΔmΔf
2 2 1  1/2(Δm+Δf-3ΔmΔf)
2 0 2  1/4ΔmΔf
a

For the pedigree shown in figure 1A.