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Confused! kindly explain, What is the fate of the male gametes discharged in the synergid?

What is the fate of the male gametes discharged in the synergid?

 

  • Option 1)

    One fuses with with the egg other(s) degentrate in the synergid

  • Option 2)

    All fuse with the egg

  • Option 3)

    One fuses with the egg, other(s) fuse with the synergid nucleus.

  • Option 4)

    One fuses with with the egg and other fuses with central cell nuclei

 
Answers (2)
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4

V Vakul

 

Double Fertilisation -

After entering one of the synergids, the  pollen tube releases the two male gametes into the cytoplasm of the synergid. One of the male gametes moves towards the egg cell and fuses with its nucleus thus completing the syngamy. This results in the formation of a diploid cell, the zygote.

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Out of the two male gamete that are discharged in the synergid cell via pollen tube one of them fuses with the egg cell to form zygote (2n) and the other one fuses with polar nuclear (central cell nucleus) to form the primary endosperm nucleus (3n)


Option 1)

One fuses with with the egg other(s) degentrate in the synergid

Option 2)

All fuse with the egg

Option 3)

One fuses with the egg, other(s) fuse with the synergid nucleus.

Option 4)

One fuses with with the egg and other fuses with central cell nuclei

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