What Can Our Chromosomes Tell Us? -- Genetic Science Learning Center
www.rarechromo.org -- Unique rare chromosome disorders support group connects families with specific chromosome conditions. They also provide a great pamphlet called "The Little Yellow Book" that provides a basic understanding of chromosomes and rare chromosome disorders
Chromosome Abnormalities -- Basic information from the Chromosome Deletion Outreach-- an online support organization
Changes to Chromosomes -- Basic information on types of chromosome changes
