John H. Postlethwait is a professor of biology and author at University of Oregon.

In 1966, Postlethwait graduated from Purdue University with a bachelor's degree in biology and was inducted into Phi Beta Kappa.

[1] He completed predoctoral work in development genetics at University of California, Irvine in 1970.

[1] At Case Western Reserve University, Postlethwait earned a doctorate in developmental genetics before completing postdoctoral research in molecular genetics at Harvard University.

[1] Postlethwait is internationally recognized for his pioneering work on molecular genetics using zebrafish (Danio rerio) as a model organism.