sister kinetochore dissociation in meiotic metaphase I with equational sister chromatid segregation in meiosis I equational sister chromatid segregation during achiasmatic meiosis I 2024-03-30T08:56:15Z vw A cellular process phenotype in which sister kinetochores become separated during the first meiotic nuclear division, and sister chromatids subsequently separate to result in equational segregation, only visible in the absence of chiasmata. Equational sister chromatid separation is caused by bi-orientated attachment of sister chromatids.