Table 2.

Classification of homozygous mutant embryos at 9.5 dpc

ClassFrequency (n)Anterior truncations (%)Trunk/posterior reduction (%)Neural tube closure defect (%)Ventral closure defect (%)Axial rotation defect (%)Reversal of heart looping (%)Ballooning of pericardial sac; oedema (%)
I62% (24)1001008810010054100
II21% (8)Variable75886310050100
III18% (7)Variable01000283950