Board Thread:Grimm Fanfic/@comment-28191176-20160819121109/@comment-2600:1700:F4C0:1500:5990:8950:68D3:46D0-20190410214350

It was explained in the show. Human/wesen end up half powered and partial woge of the wesen parent. Mixed wesen couples the dominate gene is what you usually get.

It's sounds like what happens with human genes for hair, eye, height, nose, etc. So you wouldn't end up with the fuchsbau fur, blutbad nose, fuchsbau eyes, and blutbad teeth. The human form would be something like Monroe's hair, Rosalie's nose, etc. But woged would be one of three things. Blutbad, fuchsbau, or human (assuming the wesen genes were able to cancel each other out.