1. Read the article "Stem Cells Used in Landmark Therapy forFailing Sight".http://www.newscientist.com/article/dn26220-stem-cells-used-in-landmark-therapy-for-failing-sight.html#.VHYmRcnt9z8
2. In the article, scientists turned skin cells intoundifferentiated stem cells (call iPS cells) and then turned theundifferentiated stem cells into eye cells. Use your model toexplain what would have to happen for a skin cell to become anundifferentiated stem cell and then what would need to happen forthe undifferentiated stem cell to become an eye cell.
3. Your friend claims that eye cells and skin cell containdifferent genes (i.e. have different DNA sequences). Does theconversion of skin cells to stem cells to eye cells support orrefute your friend's claim? Explain, at the molecular level, howthis evidence supports or refutes the claim.
1. Read the article "Stem Cells Used in Landmark Therapy forFailing Sight".http://www.newscientist.com/article/dn26220-stem-cells-used-in-landmark-therapy-for-failing-sight.html#.VHYmRcnt9z8
2. In the article, scientists turned skin cells intoundifferentiated stem cells (call iPS cells) and then turned theundifferentiated stem cells into eye cells. Use your model toexplain what would have to happen for a skin cell to become anundifferentiated stem cell and then what would need to happen forthe undifferentiated stem cell to become an eye cell.
3. Your friend claims that eye cells and skin cell containdifferent genes (i.e. have different DNA sequences). Does theconversion of skin cells to stem cells to eye cells support orrefute your friend's claim? Explain, at the molecular level, howthis evidence supports or refutes the claim.
