Board Thread:General Discussion/@comment-6677347-20131227002040/@comment-24890851-20150215131357

I think the Grimm DNA would cancel out the Hexenbiest DNA. So a baby born would be just Grimm and then there is blood passed between mother and baby during pregnancy so the baby would remove her hexenbiest powers.

She would likely loose her hexenbiest powers sooner considering how diseases like HIV and hepatitis pass during the act of conception, it's sort of like she already has the blood of a Grimm mixed inside of her during conception.

Nick gets in fights a lot too and it could be passed by kissing if he has a cut in his mouth.