Answer:
I would be a nucleus in skin cells. My function would be to protect the genetic material inside me and the genetic material will be replicated and transcribed inside me. As I would be a skin cell, hence I will only have one nucleus.
If I were not present in the skin cell, the DNA would not be protected and changes would occur in it. Important proteins will not be formed if I were not there. New skin cells will not be able to form if I were absent. Mitosis will also not occur.