BOTANY

Detailed explanation-1: -All somatic cells are derived from other cells through cell division, thus all cells have the same DNA in the nucleus. The exception of this is when a mutation occurs.

Detailed explanation-2: -All of the cells within a complex multicellular organism such as a human being contain the same DNA; however, the body of such an organism is clearly composed of many different types of cells.

Detailed explanation-3: -However, the expression of these genes is different for each cell because the genes not needed are.

Detailed explanation-4: -Mitosis produces two diploid (2n) somatic cells that are genetically identical to each other and the original parent cell, whereas meiosis produces four haploid (n) gametes that are genetically unique from each other and the original parent (germ) cell.