Which of the following statements is incorrect about post fetilization events in plants?

Options

A. ovary grows, enlarges, and ripens to be come a fruit
B. Fruit develops a thick protective wall, called pericarp
C. Zygote divides seversl times to form an embryo, enclosed in the seed
D. petals of the flower grow and form a part of the fruit after fertilization.

Answer

To determine which statement is incorrect about post-fertilization events in plants, we can follow these steps:

### Step-by-Step Solution:

1. **Understand Post-Fertilization Events**:
- Post-fertilization events in plants refer to the processes that occur after fertilization of the ovule. This includes the development of the zygote into a seed, the transformation of the ovary into a fruit, and changes in other floral structures.

2. **Identify Key Post-Fertilization Events**:
- The zygote undergoes cell division to develop into an embryo, which is enclosed within the seed.
- The ovary enlarges and ripens to become the fruit.
- The integuments of the ovule develop into the seed coat.
- Floral parts such as petals and sepals typically degenerate or shed after fertilization.

3. **Evaluate Each Statement**:
- **Statement 1**: "Ovary grows, enlarges, and ripens to become a fruit."
- This is correct as the ovary does turn into a fruit after fertilization.
- **Statement 2**: "Fruit develops a thick protective wall called pericarp."
- This is also correct since the pericarp is the thick protective wall that develops from the ovary wall.
- **Statement 3**: "Zygote divides several times to form an embryo enclosed in the seed."
- This statement is correct as the zygote indeed divides to form an embryo within the seed.
- **Statement 4**: "The petals of the flowers grow and form a part of the fruit after fertilization."
- This statement is incorrect because petals do not grow into the fruit; instead, they typically degenerate and fall off after fertilization.

4. **Conclusion**:
- The incorrect statement regarding post-fertilization events in plants is **Statement 4**.

### Final Answer:
The incorrect statement about post-fertilization events in plants is: "The petals of the flowers grow and form a part of the fruit after fertilization."

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