Technically, it is not possible to have similar fingerprints for two different people. That is the reason, fingerprints are taken as a unique identifying mark for any forensic experiment. The patterns of the fingerprints could be inherited but the detailed layout cannot.
However, the fingerprints of identical twins might look similar to the naked eyes. That is why familial ties are examined when comparing two similar looking fingerprints. Not only the pattern and the design of human fingers are unique, even the toes have a distinctive print pattern for each individual. Human finger impressions are pretty durable and comprehensive. It is, thus, a long time marker of human identity. Even if the genetic blueprint is the same for two persons, forensic experts will still find out the sure-shot difference between the fingerprints.