Fertilization

Some articles on fertilization:

Stages Of Human Development - Biological Development - General Aspects
... continuum, starting with the germ cells (ovum and spermatozoon), through fertilization, prenatal development, birth, and growth to adulthood ... The germinal stage, refers to ovum (egg) prior to fertilization, through the development of the early embryo, up until the time of implantation ... During this stage, the fertilization creates a single-celled zygote, which is defined as an embryo because it contains a full complement of genetic material ...
Spermophagia - Physiological Aspects - Internal and External Fertilization
... In external fertilization, the spermatozoa fertilize the ova directly, outside of the female's sexual organs ... During internal fertilization, however, fertilization occurs inside the female's sexual organs ... Internal fertilization takes place after insemination of a female by a male through copulation ...
Beginning Of Human Personhood - Biological Markers - Fertilization
... Fertilization is the fusing of the gametes, that is a sperm cell and an ovum (egg cell), to form a zygote ... Many members of the medical community accept fertilization as the point at which life begins ... At fertilization, all of the genetic characteristics, such as the color of the eyes, "are laid down determinatively." James C ...
Limia - Mating System
... Fish in the genus Limia are lecithotrophic, meaning that there is pre-fertilization maternal provisioning in the form of yolked eggs ... Fertilization is achieved internally with the male's gonopodium, a modified anal fin used for sperm transfer ... of the asymmetrical energy costs associated with internal fertilization, females in many Poeciliid species act as the choosy sex, with males exhibiting ornate coloration and morphology as well as elaborate courtship ...
Prenatal Development (biology) - Fertilization
... Fertilisation or fertilization (also known as conception, fecundation and syngamy), is fusion of gametes to form a new organism of the same species ... the animal species, the process can occur within the body of the female in internal fertilization, or outside in the case of external fertilization ...

More definitions of "fertilization":

  • (noun): Creation by the physical union of male and female gametes; of sperm and ova in an animal or pollen and ovule in a plant.
    Synonyms: fertilisation, fecundation, impregnation