stem cells CAN be obtained from: Embryos, Foetus, Unbilical cord, Bone Marrow, Plant roots, stem cells CANNOT be obtained from these: Hairs, Finger Nails, Xylem tubes, stem cells can be USED to do these: Grow crop plants, Develop drugs, Repair tissue, replace heart valves, stem cells cannot be USED to do these: Cure infection, Replace limbs,

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