To form 16 cells how many times a root cell must divide -

Options

A. 4
B. 15
C. 16
D. 2

Answer

To determine how many times a root cell must divide to form 16 cells, we can break down the process step by step.

### Step-by-Step Solution:

1. **Understanding Cell Division**:
- Each time a cell divides (mitosis), it produces two daughter cells. Therefore, after one division, one cell becomes two cells.

2. **Calculating the Number of Cells After Each Division**:
- After the first division: 1 cell → 2 cells
- After the second division: 2 cells → 4 cells
- After the third division: 4 cells → 8 cells
- After the fourth division: 8 cells → 16 cells

3. **Counting the Divisions**:
- From the calculations above, we can see that it takes 4 divisions to reach a total of 16 cells.

4. **Conclusion**:
- Therefore, to form 16 cells, a root cell must divide **4 times**.

### Final Answer:
The root cell must divide **4 times** to form 16 cells.

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