A student asks the instructor about the origins of different tissues and their cellular origins during the process of development. Which of the instructor’s following statements best describes the process of cell differentiation?

Answers:

A. “A fertilized ovum undergoes a series of divisions, yielding many different cell types.”

B. “A single stem cell differentiates into approximately 200 different types of cells.”

C. “Cells differentiate into necessary body cells peaking after conception and ceasing near the time of birth.”

D. “Cells of the hematopoietic system produce the appropriate body cells that are required at each stage of development.”

 

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