A germ cell is defined as any biological cell that generates gametes in a sexually reproducing organism.
Meiosis is a type of cell division in which a single cell divides twice to produce four cells.
These are gametes or sex cells that have exactly half the genetic material of normal gametes.
Since meiosis is required to develop and grow the sophisticated organ structures of its parents, which needs cell division, germ cells go through the process of meiosis.