The pointed pattern is usually a kind of partial albinism, resulting from the mutation in tyrosinase, an enzyme involved with melanin production. The mutated tyrosinase enzyme is warmth-sensitive; it fails to work at typical body temperatures but becomes active in cooler (< 33 °C) parts of the pores and skin.[16] https://vehicleaccidentrights33321.bligblogging.com/36192629/siamese-an-overview