So now in the stage of the zygote and the two cell embryo stage, these cells are said to be totipotent. And what that means is they have a great deal of potential and they can form any and all the cells that make up that adult human organism. Now, as the process of development continues, as the cells continue to divide and grow, their potential decreases and eventually their cellphate becomes determined. And this process is known as cell determination. So cell determination is the process by which a given unspecialized cell chooses the pathway that is going to follow, which eventually will lead it to forming a special type of cell. So this means that its cell fate is completely determined following cell determination.