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Ratio of perianth members and sporophyll...

Ratio of perianth members and sporophylls of a flower is 1 : 1 in

A

Trifolium

B

Lupin

C

Tulip

D

Brassica

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The correct Answer is:
To solve the question regarding the ratio of perianth members and sporophylls of a flower being 1:1, we can follow these steps: ### Step-by-Step Solution: 1. **Understand the Terms**: - **Perianth**: This is the collective term for the calyx (sepals) and corolla (petals) of a flower. In some flowers, these parts can be fused together and are referred to as tepals. - **Sporophylls**: These are the reproductive structures of the flower, which include stamens (male) and carpels (female). 2. **Identify the Ratio**: - The question states that the ratio of perianth members to sporophylls is 1:1. This means that for every perianth member, there is one sporophyll. 3. **Analyze the Options**: - We have four options to consider: **Trifolium**, **Lupine**, **Tulip**, and **Brassica**. - We need to determine which of these plants exhibits a 1:1 ratio of perianth members to sporophylls. 4. **Research the Flower Structure**: - **Brassica** (mustard plant) is known to have a flower structure where the number of petals (perianth members) is equal to the number of stamens (sporophylls). - In contrast, **Trifolium** (clover), **Lupine**, and **Tulip** do not exhibit this 1:1 ratio. For example, tulips have multiple petals but do not have an equal number of stamens. 5. **Conclusion**: - Based on the analysis, the flower that has a ratio of perianth members to sporophylls of 1:1 is **Brassica**. ### Final Answer: The correct answer is **Brassica**. ---
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