NEETBiologySexual Reproduction in Flowering PlantsMCQ+4 / −1
In angiosperm, the haploid, diploid and triploid structures of a fertilized embryo sac sequentially are :
- AAntipodals, synergids, and primary endosperm nucleus
- BSynergids, Zygote and Primary endosperm nucleus
- CSynergids, antipodals and Polar nuclei
- DSynergids, Primary endosperm nucleus and zygote
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Correct answer: B
Synergids are the cells of gametophyte and hence these are haploid Zygote is formed by fusion of two gametes and thus it is diploid.
Primary endosperm nucleus is formed by the fusion of diploid secondary nucleus with a male gamete. Therefore, it is triploid.
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