Stem cell

Stem cells are undifferentiated cells that have the potential to develop into different types of cells in the body. They are found in embryos, fetuses, and adults.
There are two main types of stem cells:
Embryonic stem cells: These cells are found in early embryos. They have the potential to develop into any type of cell in the body.
Adult stem cells: These cells are found in various tissues throughout the body, such as bone marrow, blood, and fat. They can develop into a variety of cell types, but they are more limited than embryonic stem cells.