How Can Two Cells of a Complex Multicellular Organism Have

question 55

Multiple Choice

How can two cells of a complex multicellular organism have the same genome, but markedly different structures and functions?

• A)During differentiation, as cells become specialized, they lose portions of their genome that are no longer needed.
• B)Different genes are expressed in different cells.
• C)Part of the process of differentiation of cells is to create mutations in the genome.
• D)Once differentiation begins, the genome no longer controls cellular functions.