Acetabularia used in Hammerling's nucleocytoplasmic experiments is

Options

A. unicellular fungus
B. multicellular fungus
C. unicellular uninucleate green alga
D. unicellular multinucleate green alga

Explanation

**Step-by-Step Solution:**

1. **Identify Acetabularia**: Acetabularia is a genus of green algae. It is important to classify it correctly among the options provided.

2. **Determine the Type of Organism**: Acetabularia is known to be a unicellular organism. This means it consists of a single cell.

3. **Check for Multinucleate Characteristics**: Acetabularia is classified as uninucleate, meaning it has one nucleus per cell. This is crucial for understanding its role in Hammerling's experiments.

4. **Understand Hammerling's Experiment**: Hammerling conducted experiments using Acetabularia to demonstrate the role of the nucleus in heredity. He showed that the nucleus is responsible for the hereditary characteristics of the organism.

5. **Conclude the Classification**: Based on the above points, Acetabularia is best classified as a "unicellular uninuclear green algae."

**Final Answer**: Acetabularia used in Hammerling's nucleocytoplasmic experiments is a unicellular uninuclear green algae.

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