Sponsor Area

Reproduction In Organisms

Question
CBSEENBI12003389

After doble fertilization, a mature ovule has

  • 1 diploid and 1 haploid cell

  • 1 diploid and 1 triploid cell

  • 2 haploid and 1 triploid cell

  • 1 haploid and 1 triploid cell

Solution

B.

1 diploid and 1 triploid cell

Double fertilization is the fusion of two male gametes with a female gametophyte. It is found only in Angiosperms.

In angiosperms, the pollen tube bursts open in one of the two synergids to release the two male gametes. One male gamete fuses with the egg to form a diploid zygote and is known as generative fertilization. The second male gamete descends down and fuses with the diploid secondary nucleus of the central cell to form a triploid primary endosperm cell and is known as vegetative fertilization.

After double fertilization, mature angiospermous ovule contains one diploid cell (zygote) and one triploid cell (endosperm).