Step 1: Understanding the Question:
This question is from Botany, specifically the chapter "Plant Kingdom" in the NCERT Class 11 curriculum.
We need to match the major groups of plants in List 1 with their representative genus examples in List 2.
Step 2: Key Concept or Approach:
We classify each genus into its respective plant group using systematic botanical criteria:
1. Bryophyta includes liverworts and mosses. Marchantia is a classic liverwort.
2. Pteridophytes include horsetails and ferns. Equisetum is commonly known as a horsetail.
3. Gymnosperms are seed-producing plants with naked seeds. Cycas belongs to this group.
4. Algae include chlorophyceae, phaeophyceae, and rhodophyceae. Ulothrix is a filamentous green alga.
Step 3: Detailed Explanation:
• Let us systematically match each plant group with its corresponding example:
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A. Bryophyta: Marchantia is a bryophyte belonging to the class Hepaticopsida (liverworts). It is dioecious and exhibits a thalloid structure. Hence, A matches with 3.
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B. Pteridophytes: Equisetum is a pteridophyte belonging to the class Sphenopsida. It has a jointed stem and is homosporous. Hence, B matches with 4.
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C. Gymnosperm: Cycas is a gymnosperm belonging to Cycadophyta. It is characterized by unbranched stems and large pinnate leaves. Hence, C matches with 1.
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D. Algae: Ulothrix is a multicellular, filamentous green alga (Chlorophyceae) that has a girdle-shaped chloroplast. Hence, D matches with 2.
• Combining these matches, we get: A-3, B-4, C-1, D-2.
• This sequence corresponds directly to option (A).
Step 4: Final Answer:
The correct matching sequence is Option (A).