Down Syndrome

by F. Fay Evans-Martin

Down syndrome is a developmental disorder caused by the presence of an extra copy of chromosome 21. This extra genetic material causes changes in the production of various proteins, such as enzymes... This description may be from another edition of this product.

• Format: Hardcover
• Language: English
• ISBN: 0791096440
• ISBN13: 9780791096444
• Release Date: June 2009
• Publisher: Chelsea House Publications
• Length: 144 Pages
• Weight: 1.05 lbs.
• Dimensions: 0.5" x 7.1" x 9.3"
• Age Range: 14 to 17 years
• Grade Range: Grades 9 to 12