NEET 2012 Biology question
How many plants in the list given below have marginal placentation ? Mustard, Gram, Tulip, Asparagus, Arhar, Sun hemp, Chilli, Colchicine, Onion, Moong, Pea, Tobacco, Lupin
Answer: (4)
Solution
Marginal placentation (ovules borne along the ventral suture of a one-chambered ovary) occurs in members of Fabaceae (legumes): Gram, Arhar, Sun hemp, Moong, Pea and Lupin, i.e. six plants. Mustard has
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