Here's why:
* Prophase is the first stage of mitosis (cell division). During prophase, the chromosomes condense and become visible under a microscope.
* Chromosomes are structures that carry genetic information. Humans have 23 pairs of chromosomes (46 total) in every cell except gametes (sperm and egg cells).
* Mitosis results in two identical daughter cells, each receiving a full set of 46 chromosomes.
So, while the chromosomes appear more condensed and distinct in prophase, the number remains the same throughout the cell cycle.