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?
A) "Cells of the hematopoietic system produce the appropriate body cells that are required at each stage of development."
B) "A single stem cell differentiates into approximately 200 different types of cells."
C) "A fertilized ovum undergoes a series of divisions, yielding many different cell types."
D) "Cells differentiate into necessary body cells peaking after conception and ceasing near the time of birth."

Question

Quizplus · Accepted Answer

Cell differentiation and consequent tissue types are the outcome of the series of cell divisions that occur in the fertilized ovum. It originates neither with a single stem cell nor in the hematopoietic system. Stem cells allow for limited differentiation throughout the life span, not only antepartum.

A Student Asks the Instructor About the Origins of Different