Figure 1: RhD DNA typing in two fetuses and their families From left to right, Family I: Lane 1 = CV Sample - RhD Positive, Lane 2=Sibling - RhD Positive, Lane 3=Mother - RhD Negative, Lane 4=Father = RhD Positive, Lane 5=DNA Molecular Weight Marker VIII (mixture of pUCBM21 DNA, cleaved with Hpa II and pUCBM21 DNA, cleaved with Dra I and Hind III) Roche Applied Science, Family II: Lane 6=CV Sample - RhD Negative, Lane 7=Sibling - RhD Negative, Lane 8=Father - RhD Negative, Lane 9=Mother - RhD Negative