If she said that your baby is biewer/yorkie then that is exactly what she is. I breed biewers and this is normally called an F1 Biewer. One parent traditonal, one parent biewer. You could also call her a "parti carrier" but since you were told she is 1/2 Biewer, she is 1/2 Biewer. A "parti" is AKC registered. She is adorable and that's really all the matters