1. The formation of male gamete:
   1. The cell containing 46 chromosomes (two N) undergoes meiosis I to produce two equal sized cells.
   2. These two cells undergo meiosis II to produce two cells each.
   3. These four cells develop into sperms.
2. The formation of female gamete:
   1. The cell containing 46 chromosomes (two N) undergoes meiosis I to produce one small cell and one big cell.
   2. These two cells undergo meiosis II to produce one big cell and three small cells. The small cells are labeled polar bodies.