Genetic diagrams and phenotypic ratios (OCR A-level Biology A module 6.1.2 [b])

Each of the 6 lessons within this bundle are fully-resourced and cover the content of point (b) of module 6.1.2 of the OCR A-level Biology A specification which states that students should be able to use genetic diagrams and phenotypic ratios to show patterns of inheritance and explain linkage and epistasis.
Students are guided through the construction of the genetic diagrams for the inheritance of one or two genes and are shown how to analyse the phenotypic ratio to determine whether linkage has occurred or whether a gene interaction is involved. The wide range of activities which includes exam questions with visual mark schemes, differentiated tasks and quiz competitions will maintain engagement whilst providing the students with opportunities to assess their progress against the current topic.