Here's a breakdown:
* Stem cells: These are undifferentiated cells with the potential to develop into specialized cell types.
* Totipotent: This term describes cells that have the ability to differentiate into any type of cell in the body, including the cells that form the placenta.
Examples of totipotent stem cells:
* Zygote: The first cell formed after fertilization.
* Early embryo cells: Cells in the very early stages of embryonic development.
It's important to note that totipotency is a very limited state. As an embryo develops, cells become more specialized and lose their totipotent ability.
Let me know if you have any other questions!
