Genes and DNA : a beginner's guide to genetics and its applications / Charlotte K. Omoto and Paul F. Lurquin.

What are genes?
Inheritance of single-gene traits
Mendelian traits in humans
From genes to phenotype
Using bacteria as protein factories
Genetically modified plants
When things go wrong
Mutagens, teratogens, and human reproduction
Linkage and mapping: gene discovery
Genetics of populations and genetic testing
Survival of the fittest?
Nature versus nurture
Genetically modified animals and the applications of gene technology for humans.