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How many plants in the list given below have marginal placentation? Mustard, Gram, Tulip, Asparagus, Arhar, Sun flower, Colchicine, Onion, Moong, Pea

1. Four
2. Five
3. Six
4. Three

Correct answer: Three

Solution

Marginal placentation is a type of placentation where the ovules are attached to the margin of the ovary. In the given list, only three plants (Mustard, Gram, and Onion) have marginal placentation.

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