part_of has_part inheres in part of qualifier abnormal meiotic homologous chromosome biorientation A cellular process phenotype in which homologous chromosome biorientation is abnormal during meiosis. Homologous chromosome biorientation is the process in which the sister centromeres of one chromosome attach to microtubules that emanate from the same spindle pole, ensuring that homologous maternal and paternal chromosomes are pulled in opposite directions at anaphase of meiosis I. abnormal homologous chromosome biorientation during meiosis midori abnormal homologous chromosome orientation involved in meiotic metaphase I plate congression 2014-03-05T16:19:48Z FYPO:0003177 abnormal homologous chromosome segregation abnormal cellular process during meiotic cell cycle