Dolly and Polly
Published Online: 15 SEP 2006
Copyright © 2001 John Wiley & Sons, Ltd. All rights reserved.
How to Cite
Petersen, A. 2006. Dolly and Polly. eLS. .
- Published Online: 15 SEP 2006
Dolly, born in 1996, achieved notoriety by being the first mammal to be cloned from the nucleus of a fully differentiated cell, taken from the udder of an adult sheep. Polly, born a year after Dolly, was not only cloned but was also genetically transformed; that is, she carried an introduced gene that codes the protein factor IX, which is involved in blood clotting, which has huge therapeutic value.
- nuclear transfer;
- reproductive cloning;
- therapeutic cloning