Board Thread:General Discussion/@comment-174.135.62.244-20160617232120/@comment-26397825-20160710232605

I believe in the context of the livestream, they mentioned that the parents can influence the semblance of the child, in the same way that a parents outlook and political views and personality can influence a child growing up. So Yang and Taiyang may have similar semblances because they may be very similar in personality, but that's a result of Yang taking after her dad rather than Yang actually inheriting the semblance. (Please note, that was pure speculation and we have no evidence as to Taiyang's semblance yet). It would look like Yang inherited her dad's semblance, but it's simply a case of nurture influencing Yang's personality and shaping the way her semblance manifests.

The Schnee's however never variate from the Glyph semblance; every Schnee has exactly the same semblance no matter how different their pesonalities may be. It is a true hereditary semblance.