Evans-Martin F. Fay:
Down Syndrome
Chelsea House Publishers (United States), 2009
Hardback, 128 pages
Size: 235x178 mm
ISBN: 9780791096444
ISBN-10: 0791096440
Down Syndrome
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 and cell adhesion molecules, which can disrupt metabolic pathways and cause defects in organ development. This title explains this genetic disease.

