Question

beta cells in the pancreas contain the same chromosomes as skeletal muscle cells, but they do not normally make myoglobin. however, they are the only cells in the body that make the protein insulin, a hormone that controls glucose levels in the blood. the production of insulin is controlled by a single gene located on chromosome 11. complete the paragraph. in humans, skeletal muscle cells and pancreatic beta cells contain dna. the gene for myoglobin production is in skeletal muscle cells and in pancreatic beta cells. dna contains the instructions for making myoglobin. dna does not hold instructions to make proteins, but it does help regulate whether the myoglobin gene is activated or inactivated in each type of cell.

Explanation:

All somatic cells in the human body contain the same DNA. Gene expression is cell - specific. The gene for myoglobin production is active in skeletal muscle cells where myoglobin is needed for oxygen - storage, and inactive in pancreatic beta cells which have different functions and produce insulin instead.

Answer:

In humans, skeletal muscle cells and pancreatic beta cells contain the same DNA. The gene for myoglobin production is active in skeletal muscle cells and inactive in pancreatic beta cells. The same DNA contains the instructions for making myoglobin. The same DNA does not hold instructions to make proteins, but it does help regulate whether the myoglobin gene is activated or inactivated in each type of cell.