Parthenogenesis: How females from some species can reproduce with out males



Enlarge / Two feminine Gila noticed whiptail lizards basking in daylight, Aspidoscelis flagellicauda. That is certainly one of a number of all-female species of whiptails that reproduce via parthenogenesis. (credit score: Wild Horizons/Common Photos Group by way of Getty Photos)
An Asian water dragon hatched from an egg on the Smithsonian Nationwide Zoo, and her keepers have been shocked. Why? Her mom had by no means been with a male water dragon. Via genetic testing, zoo scientists found the newly hatched feminine, born on Aug. 24, 2016, had been produced by way of a reproductive mode known as parthenogenesis.
Parthenogenesis is a Greek phrase which means “virgin creation,” nevertheless it particularly refers to feminine asexual replica. Whereas many individuals could assume this conduct is the area of science fiction or spiritual texts, parthenogenesis is surprisingly widespread all through the tree of life and is present in quite a lot of organisms, together with vegetation, bugs, fish, reptiles and even birds. As a result of mammals, together with human beings, require sure genes to return from sperm, mammals are incapable of parthenogenesis.
Creating offspring with out sperm
Sexual replica includes a feminine and a male, every contributing genetic materials within the type of eggs or sperm, to create a novel offspring. The overwhelming majority of animal species reproduce sexually, however females of some species are in a position to produce eggs containing all of the genetic materials required for copy.Learn 12 remaining paragraphs | Feedback



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