Changes

* Both male and female must be present.

* Both male and female must be present.

* Both sperm and [[The_Ovary_-_Oocytes_- Anatomy & Physiology|oocyte]] contribute to the embryo.

* Both sperm and [[Oogenesis - Anatomy & Physiology|oocyte]] contribute to the embryo.

== Gynogenesis ==

== Gynogenesis ==

* 99% female contribution.

* 99% female contribution.

* Mitosis occurs without separation and meiosis follows.

* Mitosis occurs without separation and meiosis follows.

* Sperm nucleus does not enter the [[The_Ovary_-_Oocytes_- Anatomy & Physiology|oocyte]] to form the diploid state.

* Sperm nucleus does not enter the [[Oogenesis - Anatomy & Physiology|oocyte]] to form the diploid state.

** Sperm contributes no genetic material to the embryo.

** Sperm contributes no genetic material to the embryo.

* Sperm are only required to [[Fertilisation%2C_Implantation_and_Early_Embryonic_Development_-Fertilisation- Anatomy & Physiology#Syngamy|activate]] the embryo.

* Sperm are only required to [[Fertilisation%2C_Implantation_and_Early_Embryonic_Development_-Fertilisation- Anatomy & Physiology#Syngamy|activate]] the embryo.

* An asexual form of reproduction found in females where growth and development of embryos  occurs without fertilization by males.  

* An asexual form of reproduction found in females where growth and development of embryos  occurs without fertilization by males.  

* 100% female contribution.

* 100% female contribution.

* Self-activated [[The_Ovary_-_Oocytes_- Anatomy & Physiology|oocytes]] require no contribution from sperm.

* Self-activated [[Oogenesis - Anatomy & Physiology|oocytes]] require no contribution from sperm.

* The offspring produced by parthenogenesis almost always are female in species where the XY chromosome system determines gender.

* The offspring produced by parthenogenesis almost always are female in species where the XY chromosome system determines gender.

=== Ovaries ===

=== Ovaries ===

* Produce 1-25,000 [[The_Ovary_-_Oocytes_- Anatomy & Physiology|oocytes]] at a time.

* Produce 1-25,000 [[Oogenesis - Anatomy & Physiology|oocytes]] at a time.

* Under the influence of the [[Pituitary_Gland_- Anatomy & Physiology|pituitary gland]].

* Under the influence of the [[Pituitary_Gland_- Anatomy & Physiology|pituitary gland]].

* [[The_Ovary_-_Oocytes_- Anatomy & Physiology|Oocytes]] squeeze out into the [[Peritoneal_Cavity_- Anatomy & Physiology|peritoneal cavity (ceolom)]].

* [[Oogenesis - Anatomy & Physiology|Oocytes]] squeeze out into the [[Peritoneal_Cavity_- Anatomy & Physiology|peritoneal cavity (ceolom)]].

* Cilia in the ceolom direct the ova into the infundibulum of the oviduct.

* Cilia in the ceolom direct the ova into the infundibulum of the oviduct.