Genetics Notes: Introduction to Genetics PowerPoint is a 28 slide PowerPoint presentation designed to introduce (or reinforce) Mendel's experiments, alleles, and Punnett squares. A set of student notes is also included with the PowerPoint. Covers the following: Mendel- history, his experiments, his conclusionsGenetic Patterns- Mendel's laws, alleles, genotypes and phenotypesPunnett Squares- History of the Punnett square, how to use Punnett squares, and 4 slides designed to be in-class Punnett sq