From which cells peripheral region of radicle is produced

Options

A. vegetative cell
B. Hypophysis
C. Apical octant
D. Micropylar octant

Answer

To answer the question "From which cells is the peripheral region of the radicle produced?", we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Embryo Development**: Begin by recognizing that the question pertains to the development of a dicot embryo. The first cell involved in this process is the zygote.

2. **Zygote Division**: The zygote undergoes division, resulting in two unequal cells. The basal cell becomes the suspensor cell, while the other cell, located at the antipodal end, is known as the terminal cell or embryo cell.

3. **Formation of Suspensor**: The suspensor cell divides transversely to form a filamentous structure that consists of approximately 6 to 10 cells. This structure helps push the growing embryo into the endosperm to absorb nutrients.

4. **Identifying Key Structures**: The first cell of the suspensor, which is positioned towards the micropilar end, becomes swollen and forms a structure called the haustorium. The last cell of the suspensor is responsible for forming the hypophysis.

5. **Role of Hypophysis**: The hypophysis is crucial as it lies adjacent to the embryo and is responsible for giving rise to the root cap and the radical. This indicates that the peripheral region of the radicle is produced from the hypophysis.

6. **Conclusion**: Therefore, the correct answer to the question is that the peripheral region of the radicle is produced from the hypophysis.

### Final Answer:
The peripheral region of the radicle is produced from the hypophysis.

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