How are stem cells gathered?

Answer 1

To enable ES (embryonic stem) cells to grow outside of the embryo they have to be cultured in the presence of embryonic fibroblasts, which provide nutrients to keep

the ES cells in an undifferentiated state. In this state the cells can

grow indefinately. When these cells are removed from the fibroblasts (or

medium which has been conditioned by these cells) the ES cells

spontaneously differentiate into a range of cell types. In theory, ES

cells can form into any of the cells within the body. However, in practice

only a few pure cell types have been produced (e.g. neuronal and blood).

Answer 2

Stem cells are biological cells popularly known for its self-renewal abilities. There are two broad types of stem cells and each has its own harvesting procedures. First is the embryonic stem cell which can only be harvested by destroying a fertilized human embryo. This procedure is considered illegal and must be stopped. The other type of stem cell is adult stem cells. These cells are found in the various tissues of the human body (bone marrow, mammary gland, blood, umbilical cord, hair follicles, human testicles).

Answer 3

Stem cells are gathered from a 4 to 5 day Embyro of a human.

Answer 4

Stem cells can be found in umbilical cord of a delivered baby.

Answer 5

Stem cells can be collected from human embryos, blood, or bone marrow.