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Motile spores and motile gametes are ab...

Motile spores and motile gametes are absent in

A

Red

B

Green

C

Brown

D

Yellow.

Text Solution

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The correct Answer is:
To answer the question "Motile spores and motile gametes are absent in which of the following?", we can follow these steps: ### Step 1: Understand the Types of Algae - Algae are classified into different groups based on their photosynthetic pigments. The main groups include green algae, brown algae, and red algae. ### Step 2: Identify the Characteristics of Each Group - **Green Algae (Chlorophyta)**: These typically have motile spores and gametes. They contain chlorophyll A and B. - **Brown Algae (Phaeophyceae)**: These also have motile spores and gametes. They contain chlorophyll A and C, along with fucoxanthin. - **Red Algae (Rhodophyceae)**: These are characterized by the presence of chlorophyll A and D, and a red pigment called phycoerythrin. ### Step 3: Analyze the Presence of Motile Spores and Gametes - In green and brown algae, motile spores and gametes are present. - In red algae, motile spores and gametes are absent. ### Step 4: Conclusion - Based on the analysis, the correct answer to the question is that motile spores and motile gametes are absent in **red algae (Rhodophyceae)**. ### Final Answer Motile spores and motile gametes are absent in **red algae (Rhodophyceae)**. ---
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