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Question

Flower with floral organs in five circles is

A
Pentamerous
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B
Pentacyclic
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C
Pentalocular
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D
Obdiplostemonous
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Solution

The correct option is B Pentacyclic
In most of the flowers, there are four whorls arranged in the cyclic pattern. So, they are tetracyclic. The condition in which there is an additional whorl of androecium is present, it is called pentacyclic.
A. Pentamerous condition refers to the presence of five sepals and petals.
B. Pentacyclic refers to the presence of five cyclic whorls.
C. Pentalocular refers to the five chambers of the ovary.
D. Obdiplostemonous androecium has two whorls of stamens, one whorl opposite to the sepals, another whorl opposite to the petals.
Hence, the correct answer is 'Pentacyclic'

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