Zygotic meiosis is characteristic of

Options

A. Marchantia
B. Fucus
C. Funaria
D. Chlamydomonas

Answer

To solve the question "Zygotic meiosis is characteristic of," we will analyze the options provided and understand the concept of zygotic meiosis in the context of plant life cycles.

### Step-by-Step Solution:

1. **Understanding Zygotic Meiosis**:
- Zygotic meiosis occurs when meiosis takes place in the zygote, leading to the formation of haploid individuals. This is characteristic of organisms with a haplontic life cycle, where the dominant phase is haploid.

2. **Identifying Life Cycle Types**:
- There are three main types of life cycles in plants:
- **Haplontic**: The haploid phase is dominant, and the diploid phase is represented only by the zygote.
- **Diplontic**: The diploid phase is dominant, and meiosis occurs to produce haploid gametes.
- **Haplodiplontic**: Both haploid and diploid phases are prominent.

3. **Analyzing the Options**:
- **Mercantia**: This is a bryophyte and exhibits a haplodiplontic life cycle.
- **Fucus**: This is an algae that also exhibits a haplodiplontic life cycle.
- **Funaria**: This is a moss (bryophyte) that has a dominant gametophytic generation, indicating a haplodiplontic life cycle.
- **Chlamydomonas**: This is a unicellular green alga that exhibits a haplontic life cycle, where zygotic meiosis occurs.

4. **Conclusion**:
- Among the options given, **Chlamydomonas** is the only organism that exhibits zygotic meiosis as it has a haplontic life cycle where the zygote undergoes meiosis to produce haploid individuals.

### Final Answer:
The correct answer is **Chlamydomonas**.

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