has_part inheres_in abnormal meiotic sister chromatid cohesion decreased meiotic sister chromatid cohesion A cellular process phenotype in which cohesion between sister chromatids is decreased during meiosis. decreased sister chromatid cohesion during meiosis FYPO:0002093 midori 2013-05-01T17:09:24Z Abnormal cohesion may cause separation of sister chromatids during the first meiotic nuclear division, leading to equational segregation. If this occurs, also annotate to 'equational sister chromatid separation during meiosis I' (FYPO:0005634). reduced meiotic sister chromatid cohesion