In angiosperms,the haploid,diploid,and triplo | vedclass

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(D) Synergids are cells of the female gametophyte and are therefore haploid $(n)$.Zygote is formed by the fusion of a male gamete $(n)$ and an egg cel

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Synergids,zygote and primary endosperm nucleus

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(D) Synergids are cells of the female gametophyte and are therefore haploid $(n)$.Zygote is formed by the fusion of a male gamete $(n)$ and an egg cell $(n)$,making it diploid $(2n)$.Primary endosperm nucleus $(PEN)$ is formed by the fusion of a diploid secondary nucleus $(2n)$ with a male gamete $(n)$,making it triploid $(3n)$.Thus,the sequence of haploid,diploid,and triploid structures is Synergids,Zygote,and Primary endosperm nucleus.

In angiosperms,the haploid,diploid,and triploid structures of a fertilized embryo sac sequentially are:

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