1. Why is it essential for the chromosomes to replicate before cell division occurs?
2. Why is it important for the ‘double stranded’ chromosomes to line up in single file down the centre of the cell prior to its splitting in two during mitosis?
3. If a cell started off with 28 chromosomes prior to going through mitosis, how many chromosomes would it end with?
4.Why is it important for the cells that are produced to be identical to the parent cell in mitosis but not in meiosis?

MUCH HELP APPRECIATED! I have absolutely no idea.

Cell Mitosis, Cells, Chromosomes, Parent Cell, Single File, Splitting In Two