NTA Abhyas NEET2020BotanyMorphology of Flowering PlantsPractice
Identify the placentation and select the options with suitable examples in which it is found?
Options
- APrimrose, Dianthus
- BMarigold, Sunflower
- CTomato, Primrose
- DPea, China rose.
Correct answer
A. Primrose, Dianthus
Step-by-step solution
Placentation (Arrangement of ovules in the ovary) 1. Marginal Placenta forms a ridge along the ventral suture of the ovary and the ovules are borne in 2 rows on this ridge Pea, Gram 2. Axile Placenta is axial making the ovary multilocular and the ovules are attached to it. Tomato, Lemon, China rose 3. Parietal Ovules are attached to the inner part of ovary. Ovary is one chambered but later on becomes 2 chambered due to the development of false septum. Mustard, Argemone 4. Basal Single ovule is attached to the base