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Radial symmetry is found in the flowers of
a. Pisum
b. Cassia
c. Brassica
d. Trifolium

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Last updated date: 23rd Jun 2024
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Answer
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Hint: The symmetry in flowers or floral symmetry describes whether the flower is divided into two or more identical parts. The parts of flowers are spirally arranged, and therefore, they do not have an axis of symmetry. The flower may have radial symmetry, bilateral symmetry, or asymmetrical.

Complete answer:
From the given options, Brassica possesses radial symmetry. The flower having radial symmetry can be divided into two equal halves by any vertical plane. These types of flowers that possess radial symmetry are known as actinomorphic flowers. These flowers can be bisected at any point, and this results in two identical halves.
In the case of Brassica, all the petals are identical in shape and size. Therefore, their petals are in radial symmetry.

On the other side, the flowers having bilateral symmetry are symmetrical only in one plane. These flowers can be cut into two equal halves only through a single vertical plane. These types of flowers are irregular or zygomorphic plants.
All other given options are zygomorphic flowers or having bilateral symmetry.

Hence, the correct answer is option (C).

Note: Flowers are the most attractive and colourful parts of the flower. They attract insects to facilitate the process of pollination. There are two types of flowers, bisexual and unisexual flowers. In some plants, stamen and pistil are found on the same flower, and hence, the flowers hold these parts together. These flowers are known as bisexual flowers. On the contrary, the unisexual flowers either contain the male reproductive part or female reproductive part.