Question

Occurrence of a single ovule in an ovary towards the upper end of its cavity produces a placentation called

• A. Basal
• B. Apical
• C. Marginal
• D. Parietal

Answer 1

Answer: (B)

Apical

In apical placentation, the ovule develops at the top of the ovary in the cavity. The ovary showing apical placentation is unilocular.

A. In basal placentation, the ovule develops at the base of the ovary.

B. In apical placentation, the ovule develops at the top of the ovary.

C. In marginal placentation, the ovules develop on the ridge along the ventral suture.

D. In parietal placentation, the ovules develop on the periphery of the ovary.

Hence, the correct answer is 'Apical'.