Board Thread:FAQs/@comment-28683979-20190605153629/@comment-29684190-20190605155122

Raven and Qrow are twins, one has a passive bad luck semblance and one can teleport, Ruby and Yang are half-sisters, one can have bursts of speed and the other can absorb kinetic energy. Raven and Yang, mother and daughter, completely different semblances.

Genetics has nothing to do with semblances...

From the Aura World of Remnant: "The power associated with a wielder's Semblance is completely unique."

Lessons Learned: Winter: "We Schnees are unique. Unlike many, our Semblance is hereditary."

...except for the Schnee family.