Dolly,+the+First+Mammal+Clone

By Amber Lopez
====Dolly started like most clones, inside a test tube.After day 6 it was confirmed that the embryo would soon be Dolly. After 148 days in her surrogate mother Dolly was born without complications on May 5, 1996.==== ====Dolly was a normal lamb until age one when tests revealed that Dolly had shorter telomeres. Telomeres get shorter with age and are found at the end of DNA chromosomes, they get shorter as more cells divide which is what is found in adult sheep. Dolly would die early because her body was aging faster than normal.==== ====Dolly was allowed to breed with a welsh mountain ram and together they produced 6 lambs.Dolly's first lamb was Bonnie, a year later Dolly gave birth to a set of twins named Sally and Rosie, the year after that Dolly had the triplets, Lucy, Darcy and Cotton.====

One of the lambs from the set of twins was diagnosed with S PA (Sheep Pulmonary Adenomatosis) which causes tumors to form in the lungs.
====Since her lamb had been diagnosed with SPA it was possible that Dolly had transferred the virus, tests confirmed that Dolly did in fact have SPA. She had also began to have severe arthritis. On February 14th, 2003 a CT scan was preformed on Dolly, the results revealed that Dolly had tumors in her chest. It was decided that Dolly should remain unconscious and receive an overdose of anesthetic agents and be put to rest.==== ====Dolly was cloned by Ian Wilmut, Keith Campbell and the colleagues of Roslin Institute. Dolly lived from May 5th, 1996 to February 14th, 2003. She received the name Dolly from a stock man that who suggested the name because Dolly was created from a mammary (breast) cell. Dolly has also been called "The world's most famous sheep". She has changed the cloning field of cloning forever.====



=The Science is...= ====Taking ideas and making them reality and making them better than planned. The scientists that created Dolly took the idea of cloning and made it better and the results of this step in cloning was the first large mammal to be cloned without complications and has also allowed them to take more advanced steps.====

Resources:
//Dolly the sheep//. (n.d.). Retrieved from http://www.roslin.ed.ac.uk/public-interest/dolly-the-sheep/