Practise the skills you need for the exam. Each tool walks you through questions one step at a time and checks your answers as you go.
Genetic Crosses Practice
Step-by-step practice for monohybrid, codominant, sex-linked and dihybrid crosses and the chi-squared test, with each answer checked as you go.
Index of Diversity
Compare species richness and the index of diversity (d) by clicking example communities or typing in your own numbers.