A: The variant NC_000019.10:g.39504095C>G in gene DLL3 is classified as 'Conflicting_classifications_of_pathogenicity' for Syndactyly|not_provided|not_specified|Spondylocostal_dysostosis_1,_autosomal_recessive. Molecular consequence: SO:0001583: missense_variant. Variant type: single_nucleotide_variant. Disease database links: Human_Phenotype_Ontology:HP:0001159,Human_Phenotype_Ontology:HP:0001206,Human_Phenotype_Ontology:HP:0001236,MONDO:MONDO:0021002,MedGen:C0039075|MedGen:C3661900|MedGen:CN169374|MONDO:MONDO:0020692,MedGen:CN032975,OMIM:277300,Orphanet:2311. Review status: criteria provided, conflicting classifications.