Meiosis occurs in the reproductive organs of all males and females. The process of meiosis results in the formation of gametes. Gametes are the reproductive cells called sperm in males and ova or eggs in females.
Meiosis is actually a type of cell division that occurs in the testes of males and in the ovaries of females. Meiosis leads to the formation of cells bearing half the normal number of chromosomes. The process is also referred to as spermatogenesis in males and oogenesis in females. Meiosis does not occur in asexual organisms. It occurs only in organisms that reproduce sexually.
All plants and animals undergo meiosis. The gametes undergo fertilization to form a zygote or a fertilized egg.