Which best describes a stem cell?

A stem cell is best described by its ability to form other cell types of the body. This unique characteristic is what significantly distinguishes stem cells from other cell types. Stem cells possess the capacity for self-renewal, meaning they can divide and replicate themselves over long periods, and they can differentiate into various specialized cell types, such as muscle cells, nerve cells, or blood cells. This potential to transform into different functional cells is fundamental for growth, development, and tissue repair in organisms.

In the context of tissue engineering and regenerative medicine, harnessing the differentiation potential of stem cells is crucial for developing therapies that can regenerate damaged tissues or organs. Therefore, this regenerative capability underscores the foundational role of stem cells in both developmental biology and clinical applications.