How many mitotic divisions are needed for a single cell to make 128 cells?
7
In mitosis, a single cell divides to form two daughter cells.
1 → 2
2 → 4
4 → 8
8 → 16
16 → 32
32 → 64
64 → 128
Therefore, 7 mitotic divisions are required for a single cell to make 128 cells.