Select incorrect statement for diplontic life cycle `:`

Options

A. Diploid sporophyte is the photosynthetic and dependent phase of the plant
B. The gametophytic phase is represented by the single to a few-celled haploid gametophyte
C. Diploid sporophyte is the dominant, photosynthetic and independent phase of the plant
D. All spermatophytes follow this pattern

Answer

### Step-by-Step Solution:

1. **Understanding the Diplontic Life Cycle**:
- The diplontic life cycle primarily involves a diploid sporophyte phase, which is the dominant and photosynthetic phase of the plant.

2. **Analyzing the Statements**:
- **Statement 1**: "Diploid sporophyte is photosynthetic and dependent phase of the plant."
- This statement is incorrect because the diploid sporophyte is actually the independent phase, not dependent.

- **Statement 2**: "The gametophytic phase is represented by the single to a five-celled haploid gametophyte."
- This statement is correct as the gametophyte is indeed haploid and can vary in cell number.

- **Statement 3**: "Diploid sporophyte is the dominant, photosynthetic, and independent phase of the plant."
- This statement is also correct since the sporophyte is the dominant phase in the diplontic life cycle.

- **Statement 4**: "All spermatophytes follow this pattern."
- This statement is correct as all spermatophytes (seed plants) exhibit a diplontic life cycle.

3. **Identifying the Incorrect Statement**:
- From the analysis, it is clear that the first statement is the only incorrect statement regarding the diplontic life cycle.

### Conclusion:
The incorrect statement for the diplontic life cycle is **Statement 1**: "Diploid sporophyte is photosynthetic and dependent phase of the plant."

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