CK-12 Foundation
Ck 12: Life Science: Dna Structure and Replication
[Free Registration/Login may be required to access all resource tools.] DNA must replicate (copy) itself so that each resulting cell after mitosis and cell division has the same DNA as the parent cell. DNA replication occurs during the S...
McGraw Hill
Glencoe Biology: Cellular Reproduction: Chapter Test Practice
Try these fifteen multiple-choice review questions over concepts in cellular reproduction.
National Institute of Educational Technologies and Teacher Training (Spain)
Ministerio De Educacion: La Leyes De La Herencia
In this unit young scholars will identify different kinds of genetic traits and how they are passed on from generation to generation. It contains 18 interactive activities.