This powerpoint (Genetics I) defines genetics, Mendel's principles of heredity, the law of dominance and segregation, the gene-chromosome theory using cross studies for the tall and short gene as an example. This is a good introduction and/refresher for a lesson on genetics.
Applied Genetics explains the sources of variations, what causes mutations, chromosomal mutations, gene mutations and human heredity. It also discusses sex linked disorders, autosomal genetic disorders, and how to detect them (karyotyping and amniocentesis). It further discusses genetic engineering for breeding. It includes gene splicing, cloning, recombinant DNA and gene therapy among others.