The attachment of the mammalian blastocyst to the uterine wall is
Incest
Implantation
Intromission
Incorporation
Blastocyst is a modified blastula of
Fraternal twins in man are produced when
The zygote passes through several developmental stages till implantation, Describe each stage briefly with suitable diagrams.
Which event is possible when changes in layer of zona pellucida occurs by sperm at fertilizatioi time?
Pregnancy begins with implantation of