Question

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

• A. (a) and (d)
• B. (b), (c) and (d)
• C. (c) and (d)
• D. (a), (c) and (d)

Answer 1

The correct option is B (b), (c) and (d)

Unisexual flowers have either the male reproductive part (stamens) or female reproductive part (pistil) but never both.
As the flowers contain either the stamen or pistil, the fertilization can take place when the pollen from another flower or plant comes near the pistil. As there will be fusion of male and female gametes from different individuals of the same species, it results in cross-fertilization.
When the ovary (female reproductive part) ripens, it forms the fruit. So, when a plant contains only stamen, female reproductive part, it cannot produce a fruit.
Thus, the correct answer is option (B).