Here's why:
* Body cells (somatic cells): These cells are diploid, meaning they have two sets of chromosomes (one from each parent). Humans have 46 chromosomes in their body cells, arranged in 23 pairs.
* Gametes: These cells are haploid, meaning they have only one set of chromosomes. Humans have 23 chromosomes in their gametes.
This is important for sexual reproduction. When a sperm and egg cell combine, they create a zygote with a full set of 46 chromosomes, half from the father and half from the mother.
