Polyploid wheat is developed by ...... .

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(D) Polyploid wheat, such as hexaploid wheat $(Triticum 	ext{ } aestivum)$, is developed through a combination of interspecific hybridization followe

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Hybridization and chromosome doubling

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(D) Polyploid wheat, such as hexaploid wheat $(Triticum 	ext{ } aestivum)$, is developed through a combination of interspecific hybridization followed by chromosome doubling. First, hybridization occurs between different species to create a hybrid. Since these hybrids are often sterile due to the inability of chromosomes to pair during meiosis, chromosome doubling (often induced by chemicals like colchicine) is performed to restore fertility and create a stable polyploid organism.

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