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  • I have a doubt, kindly clarify. Double fertilization is

Double fertilization is

  • Option 1)

    Fusion of two male gametes with one egg

  • Option 2)

    Fusion of one male gamete with two polar nuclei

  • Option 3)

    Fusion of two male gametes of a pollen tube with two different eggs

  • Option 4)

    Syngamy and triple fusion

 

Answers (2)

As we learnt in

Primary Endosperm Cell (PEC) -

Since two types of fusions, syngamy and triple fusion take place in an embryo sac the phenomenon is termed double fertilisation, an event unique to flowering plants. The central cell after triple fusion becomes the primary endosperm cell (PEC) and develops into the endosperm while the zygote develops into an embryo.

-

 

 There are two types of fusions, syngamy and triple fusion take place in an embryo sac the phenomenon is termed double fertilization.

 


Option 1)

Fusion of two male gametes with one egg

This is incorrect.

Option 2)

Fusion of one male gamete with two polar nuclei

This is incorrect.

Option 3)

Fusion of two male gametes of a pollen tube with two different eggs

This is incorrect.

Option 4)

Syngamy and triple fusion

This is correct.

Posted by

subam

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