NTA Abhyas NEET2020BotanyMorphology of Flowering PlantsPractice
Study the following statements and choose the correct answer: I. Cross-pollinating flowers have extrorse anthers. II. Samara is a type of fleshy fruit. III. Marginal placentation has a monocarpellary, unilocular ovary. IV. Opposite phyllotaxy is seen in guava.
Options
- AII and IV are correct but I and III are wrong
- BII and I are correct but III and IV are wrong
- CI, II, and IV are correct but III is wrong
- DI, III, and IV are correct but II is wrong
Correct answer
D. I, III, and IV are correct but II is wrong
Step-by-step solution
Extrorse anther dehiscence is an adaptation to facilitate the cross-pollination. Marginal Placentation is Monocarpellary unilocular ovary bears single longitudinal ovule containing placenta, that arises along the junction of two fused margins. Opposite phyllotaxy is two leaves are borne on each node lying always opposite to each other, example: Guava. Samara is a type of Dry indehiscent fruit. Its pericarp becomes membraneous and flat like wings that help in dispersal.