Multiple choice

The type of placentation met within monocarpellary, unilocular ovary is known as:

  1. marginal placentation

  2. axile placentation

  3. parietal placentation

  4. basal placentation

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A Correct answer
Explanation

In a monocarpellary (one carpel), unilocular (one chamber) ovary, ovules are arranged along the ventral suture where the carpel margins fuse. This marginal placentation is characteristic of legumes. Axile is for multicarpellary ovaries, parietal for syncarpous ovaries with false septa, basal for single basal ovule.