Inheritance & Genetics
DNA, genes and how traits pass between generations.
01DNA, Genes and ChromosomesConnect DNA, genes, chromosomes and alleles into one clear picture.Read lesson →02Punnett SquaresPredict the outcomes of single-gene crosses with step-by-step Punnett squares.Read lesson →03Inherited DisordersTrace cystic fibrosis and polydactyly through family trees.Read lesson →04Variation and SelectionExplain the genetic and environmental causes of variation in populations.Read lesson →