Question

which term describes the process of sister chromatids not separating at the centromere during cell division?
○ nondisjunction
○ desegregation
○ aneuploidy
○ cytokinesis

Explanation:

Nondisjunction is when sister chromatids fail to separate at the centromere during cell division. Desegregation is not a standard term in this context. Aneuploidy refers to an abnormal number of chromosomes (a result that can occur due to nondisjunction, but not the process itself). Cytokinesis is the process of cell - division (cytoplasm splitting), not related to chromatid separation.

Answer:

nondisjunction