Gametic meiosis occurs in

Options

A. Diatoms
B. Acellular Slime Moulds
C. Noctiluca
D. All the above.

Answer

To answer the question "Gametic meiosis occurs in:", we will analyze the options provided: diatoms, acellular slime molds, noctiluca, and all of the above.

### Step-by-Step Solution:

1. **Understanding Gametic Meiosis**:
- Gametic meiosis is a type of meiosis that occurs in diploid organisms, where the diploid cells undergo meiosis to produce haploid gametes. This process is crucial for sexual reproduction.

2. **Analyzing Diatoms**:
- Diatoms are unicellular algae that can reproduce sexually. In their life cycle, diploid cells undergo meiosis to produce haploid gametes. Therefore, gametic meiosis occurs in diatoms.

3. **Analyzing Acellular Slime Molds**:
- Acellular slime molds, such as Physarum, also have a diploid phase in their life cycle. They undergo gametic meiosis to produce haploid cells, confirming that gametic meiosis occurs in acellular slime molds as well.

4. **Analyzing Noctiluca**:
- Noctiluca is a type of dinoflagellate that also undergoes gametic meiosis. The gametocyte mother cell undergoes meiosis to produce a large number of haploid isogametes. Thus, gametic meiosis occurs in noctiluca.

5. **Conclusion**:
- Since gametic meiosis occurs in diatoms, acellular slime molds, and noctiluca, the correct answer is "all of the above".

### Final Answer:
The correct answer is: **All of the above**.

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