Medical Genetics (3 if either parent or a close relative has an inherited disease or birth defect (4) if either parent or a close relative has an inherited disease or birth defect (5 if either parent already has children with birth defects or genetic disordersMedical Genetics (3) if either parent or a close relative has an inherited disease or birth defect (4) if either parent or a close relative has an inherited disease or birth defect (5) if either parent already has children with birth defects or genetic disorders