Cloning of Human Stem Cell

Image of stem cell taken from
http://www.newscientist.com

It is reported in Reuters (Science) webpage (http://www.reuters.com/article/2013/05/16/us-science-stemcells-idUSBRE94E0V220130516), that after 15 years of trying, biologists lead by Shoukhrat Mitalipov of Oregon Health & Science University and the Oregon National Primate Research Center, uses unfertilized human eggs to grow the stem cells (what is stem cell?)

The team transplanted genetic material from an adult cell into an egg whose own DNA had been removed. This technique is similar to the one used to create Dolly the sheep - the first cloned sheep in 1996. This scientific breakthrough will now accelerates research of stem cells

Image of Dolly the sheep taken from
http://www.nature.com