Question

Which among the following is incorrect about different types of Placentation?

(a) In marginal placentation, placenta develops on the ventral side of an ovary

(b) Unlike marginal placentation where ovary is single chambered, in axile placentation ovary is multi-chambered

(c) Okra is an example of axial placentation i.e. ovary is multi-chambered and ovules are attached to the central axis

(d) Papaya is an example of basal placentation

The question was posed to me at a job interview.

The query is from Flower-1 topic in division Morphology of Flowering Plants of Biology – Class 11

Answer 1

Right answer is (d) Papaya is an example of basal placentation

The explanation: In marginal placentation, placenta develops on the ventral side of an ovary. Unlike marginal placentation where ovary is single chambered, in axile placentation ovary is multi-chambered. Okra (ladies finger) is an example of axial placentation i.e. ovary is multi-chambered and ovules are attached to the central axis. Papaya is an example of parietal placentation.