Is it a dominant or recessive allele that pes on this characteristic for cleft lip and cleft palate?

It is not a single problem(there is more than one cause of cleft lip or cleft palate) and it is not fully understood at this time. quote from site: There are many causes for of cleft lip and palate. Problems with genes ped down from one or both parents, drugs, viruses, or other toxins can all cause such birth defects. Cleft lip and palate may occur along with other syndromes or birth defects.