Where does fertilization occur in the human female reproductive system?

What is involved in the assisted reproductive technology $IVF$?

During cleavage,$DNA$ synthesis is:

Meroblastic cleavage refers to which type of division of egg?

In sexually reproducing multicellular animals,where does the development begin?

Identify the human developmental stage shown below as well as the related right place of its occurrence in a normal pregnant woman,and select the right option for the two,together.