Many chromosome mutations result when chromosomes fail to separate properly during what process?

The microtubules that separate the chromosomes during anaphase can occasionally cause a nondisjunction, which results in the daughter cells having an incorrect number of chromosomes.

Many chromosome mutations result when chromosomes fail to separate properly during the process of cell division, specifically during the phase called "meiosis" in sexual reproduction or "mitosis" in somatic cell division.

Many chromosome mutations result when chromosomes fail to separate properly during the process of cell division, specifically during the stage called "meiosis" in sexually reproducing organisms or "mitosis" in somatic cells. This failure in chromosome separation can lead to various types of mutations, including nondisjunction, where chromosomes fail to separate, resulting in an abnormal distribution of chromosomes in daughter cells.