Choose the correct statement(s) regarding post-fertilisation events.
I. In this, the formation of gametes take place.
II. In this, the formation of embryo takes place.
III. It involves cell division and growth.

Options

A. I and II
B. Only III
C. II and III
D. All of these

Answer

To solve the question regarding post-fertilization events, we need to analyze each statement provided:

### Step-by-Step Solution:

1. **Understanding Post-Fertilization Events**:
- Post-fertilization events refer to all the biological processes that occur after the fertilization of the egg by the sperm. This includes the development of the zygote into an embryo and eventually into a fetus.

2. **Analyzing Statement I**:
- **Statement I**: "In this, the formation of gametes takes place."
- This statement is **incorrect**. The formation of gametes occurs prior to fertilization, not after. Post-fertilization events do not involve the creation of gametes.

3. **Analyzing Statement II**:
- **Statement II**: "In this, the formation of embryo takes place."
- This statement is **correct**. After fertilization, the zygote undergoes several developmental stages, leading to the formation of an embryo.

4. **Analyzing Statement III**:
- **Statement III**: "It involves cell division and growth."
- This statement is also **correct**. Post-fertilization events include cell division (mitosis) and growth, which are essential for the development of the embryo from a single-celled zygote into a multicellular organism.

5. **Conclusion**:
- Based on the analysis, the correct statements regarding post-fertilization events are:
- Statement II: Correct
- Statement III: Correct
- Statement I: Incorrect

### Final Answer:
The correct statements regarding post-fertilization events are **II and III**.

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