The most common type of development of endosperm is

Options

A. cellulose and pectin
B. helobial
C. nuclear
D. perispermic

Answer

**Step-by-Step Solution:**

1. **Understanding Endosperm Development**: The endosperm is a tissue that provides nutrition to the developing embryo in seed plants. There are different types of endosperm development.

2. **Types of Endosperm Development**: The three main types of endosperm development are:
- Nuclear endosperm
- Cellular endosperm
- Helobial endosperm

3. **Nuclear Endosperm**: The most common type of endosperm development is the nuclear endosperm. In this type, the process begins with pre-nuclear divisions, meaning that the nuclei divide without the formation of cell walls between them.

4. **Characteristics of Nuclear Endosperm**:
- It is characterized by multiple nuclei in a common cytoplasm.
- This type of endosperm is typically found in many flowering plants.

5. **Other Types of Endosperm**:
- **Cellular Endosperm**: In this type, each nuclear division is followed by the formation of a cell wall, leading to the development of individual cells.
- **Helobial Endosperm**: This is an intermediate type where some divisions are followed by cell wall formation and others are not, resulting in a mix of cellular and nuclear characteristics.

6. **Conclusion**: Based on the definitions and characteristics of the types of endosperm, the answer to the question "The most common type of development of endosperm is" is **nuclear endosperm**.

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