Question

What is the missing word? Stem cells have not yet _______, so they retain the ability to develop into other types of cells.

Answer 1

Answer:

Stem cells provide new cells for the body as it grows, and replace specialised cells that are damaged or lost. They have two unique properties that enable them to do this: They can divide over and over again to produce new cells. As they divide, they can change into the other types of cell that make up the body.