NEETBotanyMorphology of Flowering Plants
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): In plum and rose, the ovary is said to be half inferior. Reason (R): In these plants, the gynoecium is situated in the centre and other parts of the flower are located on the rim of the thalamus almost at the same level. In the light of the above statements, choose the most appropriate answer from
Options
- ABoth (A) and (R) are correct and (R) is the correct explanation of (A)
- BBoth (A) and (R) are correct but (R) is not the correct explanation of (A)
- C(A) is correct but (R) is not correct
- D(A) is not correct but (R) is correct
Correct answer
A. Both (A) and (R) are correct and (R) is the correct explanation of (A)
Step-by-step solution
Assertion (A) is correct because plum and rose are examples of perigynous flowers, in which the ovary is described as half inferior. Reason (R) is correct because it provides the exact structural definition of a perigynous flower. If the gynoecium is situated in the centre and other parts of the flower are located on the rim of the thalamus almost at the same level, it is called perigynous. Since this specific structural arrangement on the thalamus is the very reason the ovary is termed half inferior, Reason (R) is