Why are there different types of cells?

Question

a. Cells become specialized before mitosis begins.

b. There are not different types of cells.

c. Gene expression is different in specialized cells.

d. Different types of cells have different chromosomes in them.

Answer 1

The correct answer is:

c. Gene expression is different in specialized cells.

Different types of cells arise because they express different sets of genes, which leads to the development of specialized structures and functions. While all cells in an organism typically contain the same genetic material (chromosomes), the specific genes that are turned on or off in each cell type result in the diversity of cell types and their specialized roles in the body.