Parthenogenesis is a type of asexual reproduction in which offspring (progeny) arise from unfertilized eggs. The phenomenon is known among many invertebrate and vertebrate groups, including some species of nematodes, gastropods, crustaceans, insects...

In most living things, fertilization occurs when the gametes of two compatible creatures are brought together. In mammals, these gametes are the (female) egg and the (male) sperm. When they meet, the egg and sperm will fuse into one body, allowing...

(from Greek, parthenos: a virgin, genesis: production) The process of reproduction in unisexual species; see...

Parthenogenesis (from the Greek παρθένος parthenos, "virgin", + γένεσις genesis, "creation") is an asexual form of reproduction found in females where growth and development of an embryo or seed occurs without fertilization by males. The...

ABSTRACT Many isolates of the plant-parasitic nematode Meloidogyne hapla reproduce by facultative meiotic parthenogenesis. Sexual crosses can occur, but, in the absence of males, the diploid state appears to be restored by reuniting sister chromosomes of a single meiosis. We have crossed inbred...

Recent scholarship has been interested in the early modern period as an age of self-actualization for the writer. Even in a moment in which criticism has distanced itself from old humanism, Renaissance man reappears in the works of such critics as Stephen Greenblatt,...

Remember the spectacular South Korean stem cell fraud of a few years ago? A new analysis says the disgraced scientist actually did reach a long-sought scientific goal. It's just not the one he claimed.The new study suggests Hwang Woo-suk and his team produced stem cells...

A British zoo announced Wednesday the virgin birth of five Komodo dragons, giving scientists new hope for the captive breeding of the endangered species.In an evolutionary twist, the newborns' eight-year-old mother Flora shocked staff at Chester Zoo in northern England when she became pregnant without...