In the haplontic life cycle of many algae,

Options

A. Sporophytic generation is represented by one celled zygote
B. Free living sporophyte is present
C. Meiosis is involved in gamete formation
D. Diploid spore forms gametophyte

Answer

### Step-by-Step Solution:

1. **Understanding the Haplontic Life Cycle**: In the haplontic life cycle, the dominant phase is the haploid gametophyte. The sporophytic generation is represented by a single zygote, which is diploid.

2. **Formation of Spores**: The zygote undergoes meiosis to produce haploid spores. These spores are crucial as they will develop into the gametophyte generation.

3. **Development of Gametes**: The haploid spores will germinate and develop into gametophytes. Gametophytes will produce gametes through mitosis.

4. **Fertilization**: When two gametes (which are haploid) fuse during fertilization, they form a diploid zygote. This zygote is the only diploid stage in the haplontic life cycle.

5. **Meiosis in the Life Cycle**: The zygote undergoes meiosis to produce new haploid spores, thus completing the cycle.

6. **Conclusion**: In summary, the sporophytic generation in the haplontic life cycle of many algae is represented by a single zygote, which undergoes meiosis to produce haploid spores.

### Final Answer:
The sporophytic generation in the haplontic life cycle of many algae is represented by a single zygote.