Here's why:
* Mitosis is a type of cell division that produces two identical daughter cells from a single parent cell.
* The goal of mitosis is to create cells for growth, repair, and replacement, all of which require cells with the same genetic information as the original.
* During mitosis, the chromosomes are duplicated, and then each copy is separated into one of the new daughter cells.
So, if a human cell (with 46 chromosomes) undergoes mitosis, each of the resulting daughter cells will also have 46 chromosomes.