Q21 / 180 · AIIMS 2005 · Botany

Double fertilization involves

  • A
    fertilization of the egg by two male gametes
  • B
    fertilization of two eggs in the same embryo sac by two sperms brought by one pollen tube
  • C
    fertilization of the egg and the central cell by two sperms brought by different pollen tubes
  • Correct answer
    D
    fertilization of the egg and the central cell by two sperms brought by the same pollen tube.

Solution

Double fertilization is the characteristic feature of angiosperms. Here one male nucleus fertilizes the egg nucleus and the other male nucleus fertilizes the central cell (polar nuclei). First fertilization result in zygote where as second fertilization results in the formation of endosperm.

Hence, the correct answer is option: 'D'.

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