Match List-I with List-II
| List-I | List-II |
|---|---|
| Term | Feature |
| (A) Autogamy | (I) Flowers do not open |
| (B) Geitonogamy | (II) Transfer of pollen grains from anther to stigma of different plant |
| (C) Xenogamy | (III) Transfer of pollen grains from anther to stigma of another flower of same plant |
| (D) Cleistogamy | (IV) Transfer of pollen grains from anther to stigma of same flower |
Choose the correct answer from the options given below.
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → (A)-(IV), (B)-(III), (C)-(II), (D)-(I)
(A) Autogamy — this matches (IV) Transfer of pollen grains from anther to stigma of same flower. “Auto” means self. In autogamy the pollen never leaves its own flower.
(B) Geitonogamy — this matches (III) Transfer of pollen grains from anther to stigma of another flower of same plant. A pollinating agent carries the pollen between two flowers, so it works like cross-pollination. But both flowers are on the same plant, so genetically it is self-pollination.
(C) Xenogamy — this matches (II) Transfer of pollen grains from anther to stigma of different plant. “Xeno” means foreign. This is the only type that brings genetically different pollen to the stigma.
(D) Cleistogamy — this matches (I) Flowers do not open. Cleistogamous flowers stay closed, as in Viola, Oxalis and Commelina. Their anthers and stigma lie close together, so they can only be self-pollinated (autogamy).
Note: The same question was also asked in CUET (UG) 2025 on 30-05-2025 (Slot 1).
NCERT Extract:
Pollination – “(i) Autogamy : In this type, pollination is achieved within the same flower. Transfer of pollen grains from the anther to the stigma of the same flower (Figure 1.9a).”
Pollination – “… Some plants such as Viola (common pansy), Oxalis, and Commelina produce two types of flowers – chasmogamous flowers which are similar to flowers of other species with exposed anthers and stigma, and cleistogamous flowers which do not open at all (Figure 1.9c).”
Pollination – “(ii) Geitonogamy – Transfer of pollen grains from the anther to the stigma of another flower of the same plant. Although geitonogamy is functionally cross-pollination involving a pollinating agent, genetically it is similar to autogamy since the pollen grains come from the same plant.
(iii) Xenogamy – Transfer of pollen grains from anther to the stigma of a different plant (Figure 1.9b).”