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  • Which among the following statements are true for unisexual flowers?(i) They possess both stamen and pistil (ii) They possess either stamen or pistil (iii) They exhibit cross pollination (iv) Unisexual flowers possessing only stamens cannot produce fruits

Which among the following statements are true for unisexual flowers?
(i) They possess both stamen and pistil
(ii) They possess either stamen or pistil
(iii) They exhibit cross pollination
(iv) Unisexual flowers possessing only stamens cannot produce fruits
(a) (i) and (iv)
(b) (ii), (iii) and (iv)
(c) (iii) and (iv)
(d) (i), (iii) and (iv)

Answers (1)

Answer: The correct answer is (b) (ii), (iii) and (iv)

Solution: In the case of angiosperms, flowers can be unisexual or bisexual. The unisexual flowers have either stamen or pistil. Cross-pollination is necessary in the case of unisexual flowers. In both types of flowers, the pistil bears an ovary. Fruit is a ripened or matured ovary. After fertilization ovary undergoes major changes and its wall also thickens to produce a fruit. Flowers possessing only stamens cannot produce fruits because fruit is a mature ovary. Hence, (b) is the correct option.

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