Genetic engineering is the transfer of DNA between organisms. Bacteria receiving human DNA can produce proteins such as insulin. Stem cells can potentially develop into specialised body parts.
stem cellA cell found in foetuses, embryos and some adult tissues that can give rise to a wide range of other cells. are cells found in animal bodies and are capable of carrying out cell division and developing into specialised types of cells.
Stem cells could potentially be given to people to help replace parts of organs that have been damaged by injuries or diseases.