Double fertilization is essential for formation of

Options

A. Cotyledons
B. Seed coat
C. Endosperm
D. Nucellus

Answer

**Step-by-Step Solution:**

1. **Understanding Double Fertilization**:
- Double fertilization is a unique process in flowering plants where two male gametes from the pollen grain fertilize two different structures in the ovule.

2. **Components Involved**:
- The ovule contains an embryo sac with two synergids, one egg cell, and a central cell (which has two polar nuclei).

3. **Process of Double Fertilization**:
- When the pollen tube reaches the micropyle of the ovule, it releases two male gametes.
- One male gamete fuses with the egg cell to form a diploid zygote.
- The second male gamete fuses with the central cell to form a triploid primary endosperm nucleus.

4. **Importance of Endosperm**:
- The primary endosperm nucleus develops into the endosperm, which provides essential nutrients to the developing zygote and future plant embryo.

5. **Conclusion**:
- Therefore, double fertilization is essential for the formation of endosperm, which supports the growth of the zygote into a seed.

**Final Answer**: Double fertilization is essential for the formation of **endosperm**.

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