- Sickle Cell Anemia is a hereditary blood disorder caused by a mutation in the gene encoding hemoglobin. It is a genetic disease. - Hemophilia is a hereditary bleeding disorder caused by defects in genes for blood clotting factors. It is a genetic disease, often X-linked. - Down Syndrome is a chromosomal disorder caused by an extra copy of chromosome 21 (trisomy 21). It is a genetic disease. - AIDS (Acquired Immunodeficiency Syndrome) is caused by the Human Immunodeficiency Virus (HIV). It is an infectious disease, not genetic. - Hepatitis B is caused by the Hepatitis B Virus (HBV). It is an infectious disease, not genetic. - Cancer can be caused by genetic mutations (inherited or acquired), but it is a complex disease resulting from uncontrolled cell growth, not solely determined by inherited genes in most cases, although genetic predisposition plays a role. In the context of distinguishing purely genetic/hereditary diseases from infectious ones, it's often categorized differently.