Question

Double fertilisation means

• A. Fusion of male gamete with egg.
• B. Fusion of male gametes with egg cell and synergid.
• C. Fusion of first male gamete with egg cell and second with the polar nuclei.
• D. Fusion of male gametes with antipodals.

Answer 1

The correct option is C

Fusion of first male gamete with egg cell and second with the polar nuclei.

Pollen tube releases two male gametes into the cytoplasm of a synergid. One male gamete moves towards the egg cell and fuses with its nucleus. The other male gamete moves towards the polar nuclei and fuses with them to form a triploid nucleus. Since, it involves fusion of two male gametes with different cells, it is called double fertilisation.