... the extraction of the embryos, the stem cells must be created. To create embryonic stem cells for research, a "stem cell line" must be created form the inner cell mass of a week-old embryo. A stem cell line is a mass of cells derived from the original, sharing its genetic characteristics. If they are cultured properly, embryonic stem cells can grow and divide indefinitely ... current methods are that various stocks of stem cell parts could be held, allowing replacement of dysfunctional cells in the body without the need for cross matching immune compatibility to a donor or chemically su...

• Word Count: 1512
• Approx Pages: 6
• Grade Level: Undergraduate

... ES cells, scientists can transform them to related important adult cells such as bone, muscle, liver or blood cells. People take human embryonic stem cells from fertilized embryos less than a week old. Those embryos are usually donated in special clinics or extract the cells from an aborted fetus. Scientists" preferred way to obtain cells is by extraction from a 'blastocyst', which is ... that not any embryonic stem cells would need to be transformed into different tissues for transplantation into patients. Whenever tissue transplantation takes place, there is always a risk that the bod...

• Word Count: 2589
• Approx Pages: 10
• Grade Level: High School