How many plants in the list given below have a marginal placentation? Mustard, Gram, Tulip, Asparagus, Arhar, Sum hemp, Chilli, Colchicine, Onion, Moong, Pea, Tobacco, Lupin.
A
Five
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B
Six
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C
Three
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D
Four
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Solution
The correct option is A Six The arrangement of ovules in the ovary is known as placentation. When the ovules develop in rows near the margin on the placenta formed along the ventral suture is known as marginal placentation. It occurs in the monocarpellary and unilocular ovary.