Receptors for sperm binding in mammals are present on :

The attachment of the mammalian blastocyst to the uterine wall is

Formation of segmentation cavity shows

The cleavage is such method of divisions of fertilized egg in which the egg

Assertion : In morula stage, cells divide without increase in size.

Reason : Zona pellucida remains undivided till cleavage is complete.

Which statement is correct for fertilization