Using the text provided and two professional resources, create a 3-page research paper. The introduction and conclusion should be clear and provide an overview. Answer the following question in the paper:
What is Down syndrome? How common is it? Are there any symptoms that the child may demonstrate? If so, what are they?
What are the contributions of heredity, environment, development, and the principles of genetic inheritance that contribute to this disorder?
Is there any treatment available for children with Down syndrome? What is the prognosis of a child with this disorder? What information does the family need to know as they care for the child?
What professional organizations, agencies, or charities are there that support children and families with down syndrome?
Elaborate and cite references using APA style.