| Type | MGI:General | Description | 2 of 12 homozygotes born of heterozygous crosses exhibited variants of double outlet right ventricle (DORV), not observed in wild-type or heterozygous mutant mice strikingly, 14 of 39 homozygotes born of homozygous crosses exhibited DORV or tetralogy of Fallot, while 1 of 39 displayed DORV plus ECD |