Question

how many times does dna divide during mitosis? once twice never three times

Explanation:

Mitosis is a type of cell division. In mitosis, DNA replicates (divides) once during the S - phase of the interphase (which is part of the cell cycle that occurs before mitosis). Then, during mitosis, the replicated DNA is divided equally into two daughter cells. So, the number of times DNA divides during mitosis (including the interphase which is a prerequisite for mitosis) is once.

Answer:

Once