WebShapiro et al. (1979) found that the STS locus did not lyonize, despite its location on the X chromosome. In fibroblasts doubly heterozygous for steroid sulfatase and G6PD (305900), steroid sulfatase was expressed in all clones regardless of whether the X chromosome was active or not, as indicated by the G6PD activity of the clone.

Web???? Lyonize ???? Lyra's Lyre ???? LyraHeartstringsTR ???? Lyrical Lament ???? Lyrony ???? LΦ ???? M Pallante ???? M. Aestro ???? MABE ???? Mac.k ???? Macarou ???? MacBrony ???? Macon Mixx ???? Macrobud ???? Mad Mars ???? MadHattersin Jeans ???? Madhouse For Equines ???? Madoka Mapper (Mordecai Mapper) ???? Maestro Scherzo ???? Magic Rhyme