This module introduces the concept of Heredity and how it occurs. This course analyses how traits are passed on from one generation to the next. This module defines alleles, genotypes, phenotypes and discusses the dominant-recessive gene principle. This module demonstrates the use of Punnett Squares and the Hardy-Weinberg Principle to predict and deduce genotypes in individuals and populations.

This module discusses bacteria and viruses. In this module, the reproduction process for bacteria is described as well as the different types of bacteria. This module also highlights how viruses replicate and can change the DNA of humans it infects. This module defines terms such as symbiosis, prokaryotes and binary fission. In this module, learners will gain an understanding of viruses like HIV and the use of antibiotics in medicine.