Extrtusion of second polar body from egg nucleus occurs:

 

  • Option 1)

    after entry of sperm but before fertilization 

  • Option 2)

    after fertilization 

  • Option 3)

    before entry of sperm into ovum

  • Option 4)

    simultaneously with first cleavge 

Answers (1)

 

Second Polar body -

This induces the completion of the meiotic division of the secondary oocyte. The second meiotic division is also unequal and results in the formation of a second polar body and a haploid ovum (ootid) .

-

 

 

Extrusion of second polar body from egg nucleus occurs during the entry of sperm but before fertilization. It occurs as a consequence of oocycte activation which is triggered by fertilizing spermatozoa.

 


Option 1)

after entry of sperm but before fertilization 

Option 2)

after fertilization 

Option 3)

before entry of sperm into ovum

Option 4)

simultaneously with first cleavge 

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