<prompt> The study for correlation of genetic disease to consanguinity -Case Contral StudyCohort studyCross-sectional studyCase report  <response>: Ans. is a i.e., Case Control Study The association of consanguinity with complex disorders can be studied using different approaches. For example, epidemialogial surveys could compare the frequency of a disorder in the progeny offirst cousin parents with that of unrelated parents, whereas case-control studies could compare the rates of first cousins among affected individuals and controls. 