Flowers are zygomorphic in - DASH

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Question

Flowers are zygomorphic in

mustard

gulmohur

tomato

Datura.

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Well-Structured Explanation 1. Understanding the Concept of Zygomorphic Flowers Flowers are described as zygomorphic when they can be divided into two mirror-image halves by only one specific vertical plane. This means there is a distinct “front” and “back” such that the symmetry is not uniform in all directions, unlike actinomorphic flowers, which can be divided into equal halves along multiple planes. 2. Identifying Zygomorphic Flowers Common examples of zygomorphic flowers include pea (Pisum sativum), bean (Phaseolus), and gulmohur (Delonix regia). In all these cases, the petals are arranged such that only one plane of symmetry exists. 3. Why Gulmohur is Correct Among the given options—mustard, gulmohur, tomato, and Datura—only gulmohur exhibits zygomorphy. Mustard, tomato, and Datura typically have actinomorphic symmetry (they can be cut into two equal halves along multiple planes). 4. Conclusion Hence, gulmohur is the correct answer because its flowers show zygomorphic symmetry, consistent with the definition that they can only be split into two equal halves by a single vertical plane.

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