Which of the following is a post-fertilization event in flowering plant

Options

A. Transfer of gametes
B. Endosperm development
C. formation of flower
D. gemination of pollen grains

Answer

**Step-by-Step Solution:**

1. **Understanding Fertilization in Flowering Plants:**
- In flowering plants, fertilization occurs when the male gamete (from pollen grains) fuses with the female gamete (egg cell) within the ovary of the pistil.
- This process results in the formation of a zygote.

2. **Identifying Pre-Fertilization Events:**
- Pre-fertilization events include the transfer of gametes (pollen grains to stigma) and the germination of pollen grains. These steps occur before fertilization takes place.

3. **Recognizing Post-Fertilization Events:**
- Post-fertilization events occur after the zygote is formed. This includes the development of the zygote into a seed and the formation of endosperm, which nourishes the developing embryo.

4. **Evaluating the Options:**
- **Transfer of gametes:** This is a pre-fertilization event.
- **Formation of flower:** This is also a pre-fertilization event.
- **Germination of pollen grains:** This occurs before fertilization as well.
- **Endosperm development:** This occurs after fertilization, making it a post-fertilization event.

5. **Conclusion:**
- The correct answer is **endosperm development**, as it is the only option that represents a post-fertilization event in flowering plants.

---