Tweeten, Lon. Time Magazine Online. 2001.

Time Magazine Online gives a diagram of the process of stem cells from embryo to stem cell.

~First: an egg is either fertilized or cloned in order to make an embryo. The embryo then starts to divide.
~Within the first 1 to 5 days, the embryo divides numerous times and takes the shape of a blastocyst (sphere).
~Between the 5 and 7 day mark, embryonic stem cells can be seen and have the ability to be developed into any tissue of the body.
~The cells are put into a petri dish to grow. They create a line of stem cells as they divide.
~When scientists use nutrients and other things, they hope to turn the cells into any of the body's 200 tissues.

Some examples that are given in the diagram include using the stem cells for:
-muscle cells-"could repair or replace a damaged heart"
-nerve cells-"could be used to treat Alzheimer's and Parkinson's diseases and repair spinal cord injuries"
-pancreatic islec cells-"could provide cure for diabeates"