Home
Class 11
BIOLOGY
Assertion : In cynthium, several male fl...

Assertion : In cynthium, several male flowers surround a single female flower
Reason : The involucre is nectariferous.

A

If both the assertion and the reason are true and the reason is a correct explanation of the assertion

B

If both the assertion and reason are true but the reason is not a correct explanation of the assertion

C

If the assertion is true but the reason is false

D

If both the assertion and reason are false

Text Solution

Verified by Experts

The correct Answer is:
B
Cyathium is a special kind of inflorescence found in Euphorbia, i.e., Poinsettia and Euphorbia
In cyathium there is a cup - shaped involucre, often provided with nectar - secreting glands. The involucre encloses a single female flower in the centre, seated on a comparatively long stalk and a number of male flowers around this, seated on short slender stalks.
Promotional Banner

Topper's Solved these Questions

  • MORPHOLOGY OF ANIMALS

    ERRORLESS |Exercise Morphology Of Animals|134 Videos

  • NEURAL CONTROL AND COORDINATION

    ERRORLESS |Exercise Neural Control And Coordination|445 Videos

Similar Questions

Explore conceptually related problems

Male flower in cyathium is

A single female flower is a feature of _______ inflorescence.

An inflorescence with a single pistillate flower surrounded by a number of staminate flowers in an involucre is called

Cyathium is characterised by I single female flower surrounded by manay male flowers II as involucre of bracts enclosing all the fowers III fleshy infloresence axis with a pear shaped cavity inside IV single male flowr surrounded by many femal flower

In cyathium inflorescence the ratio between male and female flowers is

Which of the following is not a single flower ?

An inflorescene with single, oldest, female flower and many younger male flowers has to be

Assertion : In corymb, all the flowers lie at the same level Reason : Pedicles of all the flowers are of same length.