Human reproduction: In human reproduction

In human reproduction , a new individual is formed when two cells, or gametes, come together: an ovum (egg) from the female and a sperm from the male. This union creates a zygote, with each gamete contributing half of the genetic material half from the mother and half from the father. The reproductive events in humans include formation of gametes (gametogenesis), i.e., sperms in males and ovum in females, transfer of sperms into the female genital tract (insemination) and fusion of male and female gametes (fertilisation) leading to formation of zygote. Human reproduction normally begins with copulation, though it may be achieved through artificial insemination, and is followed by nine months of pregnancy before childbirth. Human reproductive system, organ system by which humans reproduce and bear live offspring.