Beta cells in the pancreas and human skin cells

both contain the insulin gene. The beta cells can

make insulin; however, skin cells cannot. Which

process is responsible for this gene being

expressed in one cell type and not in another

cell type?

(1) mitosis (3) differentiation

(2) replication (4) meiosis

(3) differentiation
In this process, the zygote, through the process of mitosis, becomes a muticellular organism where over time, the cells' DNA activate certain genes to express certain traits leading to the formation of tissues, then organs and even more complex structures resulting the formation of a fetus.

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Beta cells in the pancreas and human skin cellsboth contain the insulin gene. The beta cells canmake insulin; however, skin cells cannot. Whichprocess is responsible for this gene beingexpressed in one cell type and not in anothercell type?(1) mitosis (3) differentiation(2) replication (4) meiosis

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