This fully-resourced lesson covers the part of specification point 7.1 of the AQA A-level Biology specification which states that students should be able to use genetic diagrams to interpret the results of crosses involving codominant and multiple alleles. The inheritance of ABO blood groups has three alleles at the gene locus on chromosome 9 where the alleles for A and B are codominant and this is used to introduce the two concepts. A range of tasks challenges the students to write genotypes, and construct genetic diagrams to calculate phenotypic ratios. They have to apply their understanding by working out the blood groups for a number of family members when presented with an incomplete pedigree tree. The final task of the lesson challenges their application skills further but this time, the animals involved are not humans. Each question is followed by a detailed, visual mark scheme so students can assess their progress and address any misconceptions
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AQA A-level Biology Topic 7: Genetics, populations, evolution and ecosystems
This bundle contains 15 fully-resourced and detailed lessons that have been designed to cover the content of topic 7 of the AQA A-level Biology specification which concerns genetics, populations, evolution and ecosystems. The wide range of activities included in each lesson will engage the students whilst the detailed content is covered and the understanding and previous knowledge checks allow them to assess their progress on the current topic as well as challenging them to make links to other related topics. Most of the tasks are differentiated to allow differing abilities to access the work and be challenged. The following sub-topics are covered in this bundle of lessons: * The use of genetic terminology * The inheritance of one or two genes in monohybrid and dihybrid crosses * Codominant and multiple alleles * The inheritance of sex-linked characteristics * Autosomal linkage * Epistasis as a gene interaction * The use of the chi-squared test * Calculating allele frequencies using the Hardy-Weinberg principle * Causes of phenotypic variation * Stabilising, directional and disruptive selection * Genetic drift * Allopatric and sympatric speciation * Species, populations, communities and ecosystems * Factors affecting the populations in ecosystems * Estimating the size of a population using randomly placed quadrats, transects and the mark-release-recapture method * Conservation of habitats frequently involves the management of succession This is one of the 8 topics which have to be covered over the length of the 2 year course and therefore it is expected that the teaching time for this bundle will be in excess of 2 months If you want to see the quality of the lessons before purchasing then the lessons on codominant and multiple alleles, epistasis and phenotypic variation are free resources to download
£20.00
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Topic 7.1: Inheritance (AQA A-level Biology)
This bundle contains 7 lessons which combine to cover the content of topic 7.1 (Inheritance) of the AQA A-level Biology specification. All 7 are fully-resourced and contain differentiated tasks which allow students of differing abilities to access the work whilst being challenged. They have been designed to include a wide range of activities that check the understanding of the current topic as well as making links between other parts of this topics and topics covered earlier in the course. The lessons on codominant and multiple alleles and epistasis are free so you can sample the quality of this bundle before deciding to make a purchase
£10.00
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This is a great resource, I downloaded it because I was bored with my own lesson. The students loved it, I loved it. Great to have supporting worksheets too!
Incredible
Excellent resource, I was able to teach without altering the resource at all. I will be looking out for more materials from this a author in the future.
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