DNA Replication and the Cell Cycle

Objectives

When you have completed this section, you should be able to

  • describe how DNA is replicated;
  • discuss the consequences of replication errors;
  • describe the life history of a cell, including the events of mitosis; and
  • explain how the timing of cell division is regulated.

Before a cell divides, it must duplicate its DNA so it can give a complete copy of the genome to each daughter cell. Since DNA controls all cellular function, this replication process must be very exact. We now examine how it is accomplished and consider the consequences of mistakes.

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Essentials of Human Physiology

Essentials of Human Physiology

This ebook provides an introductory explanation of the workings of the human body, with an effort to draw connections between the body systems and explain their interdependencies. A framework for the book is homeostasis and how the body maintains balance within each system. This is intended as a first introduction to physiology for a college-level course.

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