PBS
Pbs Learning Media: Animal Body Plans: Homeobox Genes
The homeobox genes that define the basic body plan of mice and fruit flies are illustrated in this graphic from The Human Evolution Coloring Book by Adrienne Zihlman. The accompanying article describes how these genes act as "molecular...
CK-12 Foundation
Ck 12: Biology: Fertilization to Old Age Study Guide
This comprehensive study guide covers the main terms and concepts needed for a unit on the stages of life beginning at fertilization.