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STD 12 - 1. sexual reproduction in flowering plants — BIOLOGY STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceBIOLOGYSTD 12 - 1. sexual reproduction in flowering plants1 Mark
MCQ
Nucellar polyembryony is reported in species of
  • ✓
    Citrus
  • B
    Gossypium
  • C
    Triticum
  • D
    Brassica.
✓

Answer

Correct option: A.
Citrus
a
(a) : In nucellar polyembryony, some of the nucellar cells surrounding the embryo sac start dividing. Then it protrudes into the embryo sac and develop into the embryos. In such species, each ovule contains many embryos. Occurrence of more than one embryo in a seed is referred as polyembryony. Nucellar polyembryony is found in many of the Citrus and mango varieties.

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