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STD 11 - 3. Plant kingdom — BIOLOGY STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYSTD 11 - 3. Plant kingdom1 Mark
MCQ
The endosperm in angiosperms develops from
  • A
    Zygote
  • ✓
    Secondary nucleus
  • C
    Chalazal polar nucleus
  • D
    Micropylar polar nucleus
✓

Answer

Correct option: B.
Secondary nucleus
b
Endosperm in angiosperms develops as a fusion product of secondary nucleus with male gamete. Secondary nucleus is diploid structure formed by fusion of haploid chalazal polar nucleus and haploid micropylar polar nucleus. Zygote is formed by the fusion of male gamete with egg

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