Tomas has a rare genetic defect that causes him to snore excessively. Tomas's partner, Glora, does not have this problem. Tomas's sister, Eloise, also does not have this problem. Eloise has a daughter who is normal and identical twin boys who snore excessively like Tomas. The parents of Tomas, Eloise, and Gloria are all normal. Draw a pedigree for this family. What is the mode of transmission of this defect?