Table 1.

Probabilities of the proband having genotype k (defined as the number of non-reference alleles), given the parental genotype (left column) and depending on whether the locus under consideration is in an IBD or NIBD region

genotype pairs	IBD				NIBD
	k				k
(i, j)	0	1	2	3	0	1	2	3
(0, 0)	1	0	0	0	1	0	0	0
(0, 1)	1/2	1/2	0	0	1/2	1/2	0	0
(0, 2)	0	1	0	0	0	1	0	0
(1, 0)	1/2	0	1/2	0	0	1	0	0
(1, 1)	1/4	1/4	1/4	1/4	0	1/2	1/2	0
(1, 2)	0	1/2	0	1/2	0	0	1	0
(2, 0)	0	0	1	0	0	0	1	0
(2, 1)	0	0	1/2	1/2	0	0	1/2	1/2
(2, 2)	0	0	0	1	0	0	0	1

(i, j) represents ordered genotype pairs for NDJP and the other parent, respectively.