WORKSHEET 1. Some health insurance agencies cover the costs of treating Williams syndrome only if the patient has a deletion. Why might some families object to this limitation? 2. Suggest a mechanism related to the structure of chromosome 7 that can explain the sudden appearance of Williams syndrome in a family. 3. How can a deletion and an inversion cause the same syndrome? 4. How can researchers assign signs or symptoms to specific parts of chromosome 7? 5. How might studying Williams syndrome reveal information about normal learning? WORKSHEET 1. Some health insurance agencies cover the costs of treating Williams syndrome only if the patient has a deletion. Why might some families object to this limitation? 2. Suggest a mechanism related to the structure of chromosome 7 that can explain the sudden appearance of Williams syndrome in a family. 3. How can a deletion and an inversion cause the same syndrome? 4. How can researchers assign signs or symptoms to specific parts of chromosome 7? 5. How might studying Williams syndrome reveal information about normal learning