Brown algae have a characteristic pigment of

Options

A. Phycocyanin
B. Fucoxanthin
C. Phycoerythrin
D. Haematochrome.

Answer

**Step-by-Step Solution:**

1. **Understand the Question**: The question asks for the characteristic pigment of brown algae.

2. **Review the Options**: The options provided are:
- A) Phycocyanin
- B) Fucoxanthin
- C) Phycoerythrin
- D) Hematochrome

3. **Analyze Each Option**:
- **Option A: Phycocyanin** - This pigment is found in blue-green algae, also known as cyanobacteria. Therefore, this option is incorrect for brown algae.
- **Option B: Fucoxanthin** - This is the pigment that is characteristic of brown algae. It gives them their brown color and is indeed the correct answer.
- **Option C: Phycoerythrin** - This pigment is found in red algae, making this option incorrect for brown algae.
- **Option D: Hematochrome** - This pigment is found in some green algae, which means this option is also incorrect for brown algae.

4. **Conclusion**: After analyzing all the options, the only pigment that is characteristic of brown algae is **Fucoxanthin**.

**Final Answer**: The characteristic pigment of brown algae is **Fucoxanthin**.

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