About the Authors
Claire Aldridge received her bachelor of science degree in biomedical science from Texas A&M
University. She earned her PhD from the Department of Immunology and the University Program
in Genetics at Duke University in 1996. The author of two Kaplan books, SAT Subject Test: Biology
and Microbiology and Immunology, as well as numerous scientific articles, she is adjunct faculty
in the biology department at the University of North Texas in Denton, Texas. She lives in Dallas,
Texas.
Karl Lee received a bachelor’s degree in chemistry from Amherst College, and earned an MA in
physical chemistry from Harvard University in 1996. Until recently, he was Kaplan’s director of
pre-health curriculum.