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Reproduction in Lower and Higher Plants — BIOLOGY STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 ScienceBIOLOGYReproduction in Lower and Higher Plants2 Marks
Question
Fertilization in angiosperms is double fertilization.
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Answer

  1. In angiosperms, pollen tube carries two non-motile male gametes.
  2. Pollen tube enters the embryo sac in synergids and the contents are relased.
  3. Out of the two male gametes produced by the male gametophyte, one unites with female gamete i.e syngamy and the other with the secondary nucleus i.e. triple fusion.
  4. Since both the male gametes take part in fertilization which takes place twice, it is called double fertilization.

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