Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Lucey-Driscoll syndrome is an metabolic disorder affecting enzymes involved in metabolism. It is one of several disorders classified as a transient familial neonatal unconjugated . The common cause is congenital, but it can also be caused by maternal passed on through to the . It is different from breast milk jaundice (breast-fed infants have higher bilirubin levels than formula-fed ones). A defect in the -gene, also linked to and, is responsible for the congenital form of Lucey-Driscoll syndrome. In, the term "recessive gene" refers to an that causes a (visible or detectable characteristic) that is only seen in a (an organism that has two copies of the same allele)