As a fertilized egg divides the cells differentiate because they

A. Contain a lipid bilayer

B. Have specific genes activated

C. Metabolize sugars rapidly

D. Can clump together

The correct option is B) Have specific genes activated

Explanation:

Every cell in the body is made up of the same DNA. But every cell differentiated into a certain type of cell because specific genes are activated in specific types of cells which allow these cells to be formed and differentiated. Hence, a fertilized egg divides into certain cells because the specific genes for each type of cell become activated.