This is an extensive and fully-resourced lesson that guides students through drawing genetic diagrams to show the inheritance of one or two genes in order to calculate the phenotypic ratio. The engaging PowerPoint and accompanying worksheets have been designed to cover the part of module 6.1.2 (b[i]) which states that students should be able to demonstrate and apply an understanding of the patterns for both monogenic and dihybrid inheritance
As you can see from the cover image, this lesson uses a step by step guide to go through each important stage of drawing the genetic cross. Extra time is taken over step 2 which involves writing out the different possible gametes that a parent can produce. This is the step where students most commonly make mistakes so it is critical that the method is understood. Helpful hints are also given throughout, such as only writing out the different possible gametes in order to avoid creating unnecessary work. Students are shown how to answer an example question so that they can visualise how to set out their work before they are challenged to try two further questions. This first of these is differentiated so that even those students who find this very difficult are able to access the learning. The final question will enable the students to come up with the ratio 9:3:3:1 and they will be shown how they can recognise when this should be the expected ratio as this links to the chi-squared test.
Get this resource as part of a bundle and save up to 50%
A bundle is a package of resources grouped together to teach a particular topic, or a series of lessons, in one place.
Bundle
Module 6.1.2: Patterns of inheritance (OCR A-Level Biology A)
Each of the 13 lessons included in this bundle are fully-resourced and have been designed to cover the content as detailed in module 6.1.2 (Patterns of inheritance) of the OCR A-Level Biology A specification. The specification points that are covered within these lessons include: * The contribution of environmental and genetic factors to phenotypic variation * How sexual reproduction can lead to genetic variation within a species * Genetic diagrams to show patterns of inheritance * The use of phenotypic ratios to identify autosomal and sex linkage and epistasis * Using the chi-squared test * The factors that can affect the evolution of a species * The use of the Hardy-Weinberg principle to calculate allele frequencies * The role of isolating mechanisms in the evolution of a new species The lessons have been written to include a wide range of activities and numerous understanding and prior knowledge checks so students can assess their progress against the current topic as well as be challenged to make links to other topics within this module and earlier modules.
£14.00
Bundle
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.
£6.00
Something went wrong, please try again later.
Thank you so much really good resource.
Easy to use and well structured as always. Great price too
Thank you great resource, clear and well explained examples. It has saved me loads of time adapting a powerpoint for lockdown independent work.
Have used other resources from this author and have found them very useful. I like the way that concepts are broken down and there is ample opportunity for checking students understanding. I also like the development of keywords to help students be more precise. I used this with my students and they found the activities engaging but also challenging. Great resource
This author makes truly fantastic resources. Well worth any money invested in the paid for resources too! (I personally have bought a few to save time) Perfect for home learning for the students also as all answers are included!
Report this resourceto let us know if it violates our terms and conditions.
Our customer service team will review your report and will be in touch.
£0.00