part_of part of part of has part has part has_part characteristic of part of inheres in part of has modifier 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 2014-03-05T16:19:48Z abnormal homologous chromosome orientation involved in meiotic metaphase I plate congression FYPO:0003177 abnormal homologous chromosome segregation abnormal cellular process during meiotic cell cycle homologous chromosome orientation in meiotic metaphase I quality abnormal