Vladimir Lenin led the Bolshevik Revolution, helped create the Soviet Union and launched the communist era in Russia. Learn more at Biography.com. Vladimir Lenin was founder of the Russian Communist Party, leader of the Bolshevik Revolution and architect and first head of the Soviet state.
The disadvantages come entirely from the source of stem cells. For embryonic stem cells, a human blastula (the collection of cells that will eventually become a fetus) must be sacrificed. This brings forth an image of sacrificing babies for science, and needless to say, many folks have a problem with that.
1 Embryonic stem cells (ES cells) are the gold standard for the biological concept of pluripotency. 2  Scientists are working with ES cells to learn more about what endows a cell with pluripotency and to discover safer, better ways to create iPS cells. 3  Each type of ES cell is important for different reasons: