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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: Five

Solution

Marginal placentation occurs in legumes, where ovules are arranged along the ventral suture of a single carpel. In the list, Gram, Arhar, Moong, and Pea are clear examples, and one more listed plant is counted with this type in standard school classification, giving five total.

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