Which of the following statements is/are incorrect regarding bryophytes

Options

A. Sporophyte is parasitic over gametophyte
B. Fertilization takes place in presence of water
C. Zygote undergoes mitosis to form embryo proper
D. Zygote undergoes meiosis to produce sporophytes.

Answer

To determine which statements regarding bryophytes are incorrect, we will analyze each option based on the characteristics of bryophytes.

### Step-by-Step Solution:

1. **Understanding Bryophytes**:
- Bryophytes are non-vascular plants that include mosses, liverworts, and hornworts. They have a life cycle that includes both a gametophyte (haploid) and a sporophyte (diploid) generation.

2. **Analyzing the Statements**:
- **Statement 1**: "Sporophyte is parasitic over gametophyte."
- This statement is **correct**. The sporophyte is dependent on the gametophyte for nutrition and support, but it is not considered parasitic in the traditional sense. It is more accurate to say that the sporophyte is dependent on the gametophyte.

- **Statement 2**: "Fertilization takes place in presence of water."
- This statement is **correct**. Fertilization in bryophytes requires water for the motile sperm (antherozoids) to swim to the egg.

- **Statement 3**: "Zygote undergoes mitosis to form embryo proper."
- This statement is **correct**. After fertilization, the zygote undergoes mitosis to develop into an embryo, which is retained within the archegonium.

- **Statement 4**: "Zygote undergoes meiosis to produce sporophytes."
- This statement is **incorrect**. The zygote undergoes mitosis to form an embryo, which then develops into a sporophyte. The sporophyte will eventually produce spores through meiosis, but the zygote itself does not undergo meiosis.

3. **Conclusion**:
- The only incorrect statement regarding bryophytes is **Statement 4**: "Zygote undergoes meiosis to produce sporophytes."

### Final Answer:
The incorrect statement regarding bryophytes is: **"Zygote undergoes meiosis to produce sporophytes."**

---