PATHOLOGY

Detailed explanation-1: -muscle cells use different genes than bone cells. Remember, all of our cells contain the same DNA, but not all of our cells use all of this DNA. Muscle cells express the DNA that is meant for muscular functions, and bone cells express the DNA that is meant for skeletal functions.

Detailed explanation-2: -Thus, the correct option is B) the skin cells express different genes than the brain cells.

Detailed explanation-3: -Under a microscope, bone cells look very different from muscle cells. Bone cells are star-shaped and contain a nucleus and a thin ring of cytoplasm. Bone tissue is made up of layers of bone cells surrounded by calcium and other minerals. These minerals are what make our bones hard.

Detailed explanation-4: -Gene regulation makes cells different These different patterns of gene expression cause your various cell types to have different sets of proteins, making each cell type uniquely specialized to do its job.