Reproduction in Animals Notes

• The female reproductive organs are a pair of ovaries, oviducts (fallopian tubes) and the uterus.

• Ovary produces female gametes called ova (eggs)
• A single matured egg is released into the oviduct by one of the ovaries every month.
• Ova is larger in size as compared to sperm and is non motile.
• It is meant for providing nourishment to the zygote.

• Fusion of the egg and the sperm is called fertilization.
• The site of fertilization is oviduct.
• During fertilization, the nuclei of the sperm and the egg fuse to form a single nucleus.
• This results in the formation of a fertilized egg or zygote.
• The new individual inherits some characteristics from the mother and some from the father.
• Fertilization can be of two types: internal and external.

Internal Fertilization: