Triploid condition is only present in

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(D) The triploid $(3x)$ condition is a characteristic feature of the endosperm in angiosperms.During double fertilization,one male gamete fuses with t

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Angiosperms

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(D) The triploid $(3x)$ condition is a characteristic feature of the endosperm in angiosperms.During double fertilization,one male gamete fuses with the two polar nuclei (or the secondary nucleus) to form the Primary Endosperm Nucleus $(PEN)$,which is triploid $(3x)$.This structure provides nourishment to the developing embryo.Bryophytes,pteridophytes,and gymnosperms do not exhibit this specific triploid endosperm formation.

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