Parthenogenesis is a term in biology. It means virgin birth. It is an asexual form of reproduction. Females lay eggs without fertilization by a male. Growth and development of embryos occurs with all genes inherited from the mother.
It occurs in both plants and animals and is much less common than sexual reproduction. It even occurs in vertebrates:there are over 80 species of unisex reptiles, amphibians and fishes in nature for which males are no longer a part of the reproductive process.