The achievement is an `` important step '' in stem cell research , scientists say . Dr. Alan Trounson , who heads the California Institute for Regenerative Medicine , which funds embryonic and adult stem cell research , says if researchers are able to take the next step and figure out how to make embryonic stem cells without the excess chromosomes , then they can begin to compare them to iPS cells and determine how different or similar they really are . They used a technique similar to the one used to clone Dolly the sheep . Scientists can now grow human embryonic stem cells from skin and other tissue samples without destroying them or damaging healthy tissues.
The achievement is an `` important step '' in stem cell research , scientists say . They used a technique similar to the one used to clone Dolly the sheep . Scientists can now grow human embryonic stem cells from skin and other tissue samples without destroying them or damaging healthy tissues.