A: The variant NC_000019.10:g.39500733G>A in gene DLL3 is classified as 'Likely_benign' for not_provided|Spondylocostal_dysostosis_1,_autosomal_recessive. Molecular consequence: SO:0001627: intron_variant. Variant type: single_nucleotide_variant. Disease database links: MedGen:C3661900|MONDO:MONDO:0020692,MedGen:CN032975,OMIM:277300,Orphanet:2311. Review status: criteria provided, multiple submitters, no conflicts.