Sexual mode of reproduction in protozoa is

Options

A. schizogony
B. autogamy
C. plasmotomy
D. anisogamy

Answer

To answer the question regarding the sexual mode of reproduction in protozoa, we will analyze the options provided and identify the correct one.

### Step 1: Understand the Modes of Reproduction in Protozoa
Protozoa can reproduce both asexually and sexually. The sexual reproduction often involves processes such as conjugation, where two organisms exchange genetic material.

### Step 2: Analyze the Given Options
1. **Schizogamy**: This term generally refers to a form of asexual reproduction where multiple fissions occur, not a sexual mode.
2. **Autogamy**: This is a form of sexual reproduction where an organism fertilizes itself, but it is less common in protozoa.
3. **Plasmatomy**: This refers to a type of asexual reproduction where the cytoplasm divides, which is not a sexual mode.
4. **Anisogamy**: This involves the fusion of two gametes that are different in size, typically with a smaller male gamete and a larger female gamete.

### Step 3: Identify the Correct Answer
Among the options, **anisogamy** is the correct answer as it represents a sexual mode of reproduction in protozoa, involving the fusion of two dissimilar gametes.

### Conclusion
The sexual mode of reproduction in protozoa is **anisogamy**.

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