Members of phaeophyceae show characteristic class colour due to the dominance of

Options

A. Chlorophyll a
B. Chlorophyll c
C. `beta`-carotene
D. Fucoxanthin

Answer

**Step-by-Step Solution:**

1. **Understanding Phaeophyceae**: Phaeophyceae, commonly known as brown algae, is a class of algae that is primarily found in marine environments. They can also be found in freshwater and brackish water.

2. **Identifying Pigments**: Members of Phaeophyceae contain various pigments. The primary pigments include chlorophyll A and chlorophyll C, which are involved in photosynthesis.

3. **Dominant Pigment**: While chlorophyll A and C are present, they do not give the characteristic brown color to these algae. The dominant pigment responsible for the brown color is fucoxanthin.

4. **Conclusion**: Therefore, the characteristic color of members of Phaeophyceae is due to the dominance of fucoxanthin.

**Final Answer**: Members of Phaeophyceae show characteristic color due to the dominance of fucoxanthin.

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