S Korean researchers clone cow with new freezing technology: "South Korea has succeeded in cloning a black cow that died three years ago with ultra-rapid freezing and thawing of eggs, local media reported Tuesday.
A research team at Jeju National University led by Professor Park Se-pill and Mirae Biotech announced over the weekend that they succeeded in developing a new freeze-and-thaw technology that allows mass cloning of animals even after their death.
The researchers transplanted somatic nuclei from a dead cow into eggs to create embryos through in vitro fertilization. Then, they froze the embryos at minus 196 degrees Celsius, and had kept them for three years before thawing and implanting them into the womb of a surrogate mother last January for the delivery of a baby cow through natural birth."
No comments:
Post a Comment