Medical Genetics In meiosis i, the error occurs when the homologous pairs both travel into the same daughter cell. The result is two daughter cells that have two copies of the chromosome(called disomic cells) and two cells that are missing that chromosome(called nullisomic cellsMedical Genetics In meiosis I, the error occurs when the homologous pairs both travel into the same daughter cell. The result is two daughter cells that have two copies of the chromosome (called disomic cells) and two cells that are missing that chromosome (called nullisomic cells)