The Preimplantation Period

1. The blastocyst ideally will implant:

In the ovary

To the wall of a fallopian tube

On the back wall of the uterus

On the cervix

2. The type of cellular division that occurs during fertilization that ensures the correct number of chromosomes in the new individual is:

Cleavage

Mitosis

Meiosis

Replication

3. In the Preimplantation Period, when the fertilized egg grows to a size of roughly 16 cells tightly packed together, the proper term used to describe this is a:

Zygote

Blastocyst

Morula

Trophoblast

4. After implantation, the blastocyst will consist of 2 layers, the inner mass of cells is referred to as the ____ layer:

Embryoblast

Blastocyst

Trophoblast

Primary

5. How long does the Preimplantation Period of prenatal development last?

1 week

2 weeks

8 weeks

12 weeks