Some can be harmful, others beneficial, others neutral. It all depends on what mutation affects you and what the effects of the mutation are.
Missing options in the question:
the gene that controls the production of stem cells
the gene that controls the production of skin cells
the gene that controls the production of red blood cells
the gene that controls the production of cardiac cells
Answer:
B. the gene that controls the production of skin cells
Explanation:
Superficial scrapes are the damages of upper skin layers which could occur due to accidents or sunburning. Upon damaging, body sheds the skin cells and then replaces with new cells. This process thus is governed by the expression of skin related genes.
Not created but the division of cells takes place in both of these processes.
If you are talking about the skeletal system then I would say that it is most probably the compact bone area.
