Morphology Of Flowering Plants Root Stem And Leaf Question 322
Question: Read the assertion and reason carefully:
Assertion : In cyathium, several male flowers surround a single female flower. Reason : The involucre is nectariferous.
Options:
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
Show Answer
Answer:
Correct Answer: B
Solution:
Explanation: Cyathium is a special kind of inflorescence found in Euphorbia, i.e., Poinsetia 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.