Double endosperm is present in :

Options

A. Cotton
B. Maize
C. Capsella
D. Coconut

Answer

To determine which plant has double endosperm, follow these steps:

### Step-by-Step Solution:

1. **Understand Endosperm Formation**:
- Endosperm is a tissue that provides nutrition to the developing embryo in seed plants. It is formed after a process called triple fusion, where one sperm nucleus fuses with two polar nuclei.

2. **Identify the Ploidy of Endosperm**:
- The ploidy level of the endosperm is triploid (3N) because it is formed from the fusion of one sperm cell with two polar nuclei.

3. **Define Double Endosperm**:
- Double endosperm refers to the presence of two endosperms, which can occur when two embryos develop within a single seed.

4. **Examine the Options**:
- Analyze the options provided:
- **Option A: Cotton** - Cotton seeds typically contain only one embryo.
- **Option B: Maize** - Maize also has a single embryo.
- **Option C: Capsula** - Similar to the previous two, Capsula has a single embryo.
- **Option D: Coconut** - Coconuts are known for having double endosperm, which means they can develop two embryos.

5. **Select the Correct Answer**:
- Based on the analysis, the correct answer is **Option D: Coconut**, as it is the only option that exhibits double endosperm.

### Final Answer:
Double endosperm is present in **Coconut**.

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