Haploid plant obtained from
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Anther
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Ovary
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Embryo
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Callus
A
Correct answer
Explanation
Haploid plants are typically produced through anther or pollen culture, a process known as androgenesis. The microspores (pollen grains) inside the anther are haploid, and culturing them allows for the regeneration of haploid plants. Other structures like the embryo or callus are usually diploid unless derived from haploid tissues.