Question

which best contrasts self - renewal and differentiation?
○ only differentiation is a process that results from stem cell division.
○ only differentiation creates more of the same types of cells.
○ only self - renewal creates more of the same types of cells.
○ only self - renewal depends on gene expression.

Explanation:

1. Analyze the first option: Both self - renewal and differentiation can result from stem cell division, so this is incorrect.
2. Analyze the second option: Self - renewal (not differentiation) creates more of the same type of cells. Differentiation creates specialized cells. So this is incorrect.
3. Analyze the third option: Self - renewal is the process by which stem cells divide to make more stem cells (same type), while differentiation makes specialized cells. This is correct.
4. Analyze the fourth option: Both self - renewal and differentiation depend on gene expression (different genes are expressed for each process), so this is incorrect.

Answer:

C. Only self - renewal creates more of the same types of cells. (Here we assume the options are labeled A, B, C, D in order. If the original options have different labels, adjust accordingly. The correct option is the one stating "Only self - renewal creates more of the same types of cells".)