Development of embryo from the cells of the nucellus is called

Options

A. Parthenocarpy
B. Apocarpy
C. Adventive embryony
D. Apospory

Explanation

To answer the question about the development of an embryo from the cells of the nucellus, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Nucellus**: The nucellus is a part of the ovule in seed plants. It is the tissue that surrounds the female gametophyte and is involved in the development of the embryo.

2. **Identifying the Process**: The question asks for the specific term that describes the development of an embryo from the cells of the nucellus.

3. **Recognizing the Term**: The correct term for this process is "Adventive Embryony." This term refers to the formation of an embryo from cells other than the zygote, specifically from the nucellus in this case.

4. **Understanding Adventive Embryony**: In Adventive Embryony, the embryo develops directly from the diploid sporophyte tissue (the nucellus), which is not the typical pathway of embryo development that occurs from fertilization of an egg cell.

5. **Conclusion**: Therefore, the development of an embryo from the cells of the nucellus is called "Adventive Embryony."

### Final Answer:
The development of an embryo from the cells of the nucellus is called **Adventive Embryony**.

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