1Differentiation is described as the process of a cell becoming more specialized. What is the difference between dedifferentiation and transdifferentiation?

2.Name three ways that scientists have artificially generated human stem cells and briefly describe the experimental process.

3.What other sources of stem cells are there in humans other than the oocyte?

4.The organism C. elegans is a model organism to study in multiple areas of biology. Name at least three reasons why C. elegans is such a great model organism.

5.Define the different steps of the cell cycle.

6.Explain why the removal of essential amino acids during the cell cycle would cause the halt of cell division?

7.What is the difference between a checkpoint and a restriction point in the cell cycle?