2. Membranes and organelles.
3. The cytoskeleton and cell movement.
5. DNA structure and the genetic code.
6. Patterns of inheritance.
9. DNA replication and DNA repair.
10. Transcription and the control of gene expression.
11. Recombinant DNA and genetic engineering.
12. Translation and protein targeting.
15. Energy trading within the cell.
18. The action potential.
19. Intracellular messengers.
20. Intercellular communication.