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Question
Parietal placentation is characteristic of
Parietal placentation is characteristic of
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Solution
The correct option is A Brassica campestris
The arrangement of ovules within the ovary is called as placentation. There are different types of placentation as marginal, axile, parietal, basal, central and free central.
Hibiscus rosa-sinensis belongs to family Malvaceae. It shows axile placentation. In axile placentation, the placenta is axial and ovules are attached to it in a multilocular ovary.
Allium cepa (onion) belongs to family Liliaceae. It shows axile placentation.
Solanum nigrum belongs to family Solanaceae. It has swollen axial placenta to which many ovules are attached i.e. axile placentation.
Brassica campestris (mustard) belongs to family Brassicaceae. It shows parietal placentation. In parietal placentation, ovules develop on inner wall of ovary or on parietal part.
Therefore, the correct answer is option A.
The arrangement of ovules within the ovary is called as placentation. There are different types of placentation as marginal, axile, parietal, basal, central and free central.
Hibiscus rosa-sinensis belongs to family Malvaceae. It shows axile placentation. In axile placentation, the placenta is axial and ovules are attached to it in a multilocular ovary.
Allium cepa (onion) belongs to family Liliaceae. It shows axile placentation.
Solanum nigrum belongs to family Solanaceae. It has swollen axial placenta to which many ovules are attached i.e. axile placentation.
Brassica campestris (mustard) belongs to family Brassicaceae. It shows parietal placentation. In parietal placentation, ovules develop on inner wall of ovary or on parietal part.
Therefore, the correct answer is option A.
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