Typing the maternal grandparents for SSR37 Family #4 SSR37 ABCDE Locus HD HD Now we can deduce the Phase 1 B phase in the mother HD Phase 2: DTyping the maternal grandparents for SSR37: D SSR37 E C B A Now we can deduce the phase in the mother: Family #4: + D HD B Phase 2: + B HD D Phase 1: Locus: HD SSR37