Q.

Identify the Mismatch.

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a

Asymmetric flowers – Canna

b

Trimerous flowers – Allium cepa

c

Teteramerous flowers - Mustard

d

Pentamerous flowers - Tulip

answer is B.

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Detailed Solution

NCERT CLASS-XI – Page No. 79, 80, 81.

A flower may be trimerous, tetramerous or pentamerous when the floral appendages are in multiple of 3, 4 or 5, respectively.

Trimerous flowers – Allium Cepa,it is a characteristic feature of Liliaceae family.

Pentamerous flowers - Tulip is incorrect because Tulip also belongs to Liliaceae .

A flower is asymmetric (irregular) if it cannot be divided into two similar halves by any vertical plane passing through the center, as in canna.

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