🏫 Board🧬 Biology

Morphology of Flowering Plants

1 Board Biology previous year questions on Morphology of Flowering Plants — options free on every question; 1 include the answer & explanation free, the rest unlock with PYQ Pass.

Q1 FREE PREVIEW

In Calotropis plant aestivation is:

a

valvate.

b

vexillary.

c

imbricate.

d

twisted.

✓ Correct answer: a)

valvate.

Explanation

Arrangement of sepals or petals in flowers is called the aestivation. When sepals or petals in a whorl just touch one another at the margin, without overlapping, it is said to be valvate as in Calotropis.

[NCERT 11th Edition 2024-25 Page No. 65]

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