Which of the statements regarding haplontic life cycle is incorrect?

Options

A. Sporophytic generation is represented only by the one-called zygote.
B. There is no free-living sporophyte.
C. Mitosis in the zygote results in the formation of haploid spores.
D. The haploid spores divide mitotically and form the gametophyte.

Explanation

To determine which statement regarding the haplontic life cycle is incorrect, we will analyze each of the provided options step by step.

### Step 1: Understand the Haplontic Life Cycle
In the haplontic life cycle, the dominant phase is the haploid gametophyte. The sporophyte is represented only by the zygote, which is a brief diploid stage.

### Step 2: Analyze Each Statement
1. **Statement 1**: "Sporophytic generation is represented only by one called zygote."
- This statement is **incorrect** because while the zygote is the only sporophytic generation in haplontic organisms, the phrasing can be misleading. The sporophyte is not a free-living entity; it is short-lived.

2. **Statement 2**: "There is no free living sporophyte."
- This statement is **correct**. In the haplontic life cycle, the sporophyte does not exist as a free-living organism; it is only represented by the zygote.

3. **Statement 3**: "Mitosis in the zygote results in formation of haploid spores."
- This statement is **incorrect**. The zygote undergoes meiosis, not mitosis, to produce haploid spores.

4. **Statement 4**: "The haploid spores divide mitotically to form gametophyte."
- This statement is **correct**. The haploid spores do undergo mitotic division to develop into the gametophyte.

### Step 3: Identify the Incorrect Statement
From the analysis, the statements that are incorrect are:
- Statement 1: Although it is true that the sporophyte is represented by the zygote, the way it is phrased can be misleading.
- Statement 3: This is clearly incorrect as the zygote undergoes meiosis to form haploid spores.

### Conclusion
The incorrect statement regarding the haplontic life cycle is:
- **Mitosis in the zygote results in formation of haploid spores.** (This should be meiosis.)