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Which family has unisexual flowers?
A. Rutaceae
B. Euphorbiaceae
C. Musaceae
D. Moraceae
E. Only (B), (C), and (D)
F. None of the above

Last updated date: 13th Jun 2024
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Hint: A flower that possesses either stamens or carpels but not both is called unisexual flower.
This condition is also called diclinous, incomplete, or imperfect.

Complete answer: Rutaceae: The Rutaceae are a family, commonly known as the rue or citrus family, of flowering plants, usually placed in the order Sapindales. Species of the family generally have flowers that divide into four or five parts, usually with strong scents. The flowers are usually bisexual and actinomorphic, hypogynous, rarely epigynous.
Euphorbiaceae: The Euphorbiaceae is a large family, the spurge family, of flowering plants. The flowers are unisexual and usually actinomorphic. They may be highly reduced by suppression of parts, in the extreme form consisting of a naked stamen as a male flower and a naked pistil as a female flower.
Musaceae: Musaceae is a family of flowering plants composed of three genera with ca 91 known species, placed in the order Zingiberales. The flowers are zygomorphic and functionally unisexual, the proximal one’s being female and the distal one’s male.
Moraceae: The Moraceae often called the mulberry family or fig family are a family of flowering plants comprising about 38 genera and over 1100 species. The flowers are unisexual, small, actinomorphic, hypogynous, or epigynous.
So, the answer is E, i.e., Only (B), (C), and (D) i.e. Euphorbiaceae, Musaceae, and Moraceae are unisexual.

Note: A plant may be unisexual (dioecious), possessing only male flowers or female flowers; or it may be monoecious with male and female reproductive organs borne in the same flower or in different unisexual flowers but on the same plant.