Which of the following best explains why cells that contain the same genetic material do not develop into the same types of cells? A. Because internal or external stimuli can trigger the activation of specific genes in the DNA of cells
B. Because random mutations can occur in the DNA of cells during early embryonic development
C. Because messenger RNA is converted to transfer RNA when cell differentiation begins
D. Because chemical signals that are released during the cell cycle can result in the linking of similar genes