Roots arise .......... from the .......... cells.

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the origin of roots and specifies the type of cells from which they arise.

2. **Identifying the Type of Roots**: The roots in question are lateral roots, which are branches that arise from the main root.

3. **Locating the Source of Lateral Roots**: Lateral roots originate from a specific layer of cells in the plant. This layer is known as the pericycle.

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