<prompt> Blaschkos lines refers to lines of:Melanocyte migrationEctodermal cell migrationMesodermal cell migrationEndodermal cell migration  <response>: Blaschkos lines are characteristic of mosaic conditions of the epidermis and probably represent the routes of ectodermal cell migration from the neural crest. Ref: Rooks textbook of dermatology, 8th edition, Pg 18.4. 