Discussion
Stem cells are distinguished by their capacity to
Answer: A
Correct answer: divide and give rise to specialised cells
A stem cell has two properties together: it can divide to renew itself, and its daughters can differentiate into specialised types. Either alone is insufficient - many cells divide without differentiating, and a differentiated cell that cannot renew is not a stem cell. The range of types available defines the grade, from totipotent through pluripotent to the multipotent cells of adult tissues.
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