Cells and molecules: the unity of life
Stem cells: embryos, therapeutic cloning, and personhood
Embryo selection: preimplantation genetic diagnosis
The human genome project: spin-offs and fallout
Human diversity, genes, and medicine: richness and dangers
Genetic enhancement: humankind healing and redesigning itself
Human reproductive cloning: sameness, uniqueness, and personal identity
Age retardation: chasing immortality for better or worse
The mind: neuroenhancement and neuroethics
Synthetic biology: from cocreator to creator.