What is the significance of the ampullary-isthmic junction in the female reproductive tract?

  • A
    It is the site of implantation of the embryo.
  • B
    It is the site where fertilization of the ovum occurs.
  • C
    It is the site of oogenesis.
  • D
    It is the site of sperm maturation.

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In human beings,cleavage of the fertilized egg:

In humans,fertilization is possible only when,

In eggs which have very thick and resistant membrane,e.g.,fishes and insects,the sperm penetrates through a special canal called:

The final event in the process of fertilization is

Assertion : During fertilization,only the head of the spermatozoa enters the egg.
Reason : If several spermatozoa hit the egg at the same time,all can enter the egg.

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