This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Types of Genetic Disorders, Subject name: Pediatrics
[{'content': "All of the following are true about 'Non-disjunction' EXCEPT? \nSelect and explain. \nA. It may result in Aneuploidy, B. It is the failure of chromosomes to separate normally during cell division, C. It may occur in meiosis or mitosis, D. It cannot cause Mosaicism", 'role': 'user'}, {'content': "Answer: D \nExplanation: Non-disjunction: failure of chromosomes to separate normally during cell division. It may occur in meiosis or mitosis. It may result in Aneuploidy. If non-disjunction occurs in one of the first few mitotic divisions, 2 or more cell lines can be observed in the same individual- 'Mosaicism'", 'role': 'assistant'}]