Pregnancy begins with implantation of

  • A

    Embryo

  • B

    Fertilised ovum

  • C

    Blastopore

  • D

    Blastocyst

Similar Questions

Formation of segmentation cavity shows

Identify figure

Fertilization occurs in human, rabbit and other placental mammals in

  • [AIIMS 1993]

$A$ : In morula stage the cells divide without any increase in size.
$R$ : Zona pellucida remains intact till cleavage is completed.

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