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Chapter 20 - Patterns of Inheritance and Variation

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A-Level Science Articles

The following articles will help to explain and deepen your understanding and knowledge of topics linked to this module. You could use them to build a mindmap, make a key word glossary or simply annotate them so you understand them in your own way.
genetics_-_pedigree_charts.pdf
File Size: 510 kb
File Type: pdf
Download File

human_evolution.doc
File Size: 8106 kb
File Type: doc
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selection_and_speciation.doc
File Size: 4513 kb
File Type: doc
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chisquared1.doc
File Size: 9183 kb
File Type: doc
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Videos






Good video going over the basics of Heredity, mono-hybrid genetic crosses and key terminology. 




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For those of you that get confused by Dihybrid crosses, watch this video as it slowly takes you through an example using fruit flies. Then just adapt this example to any exam question!!!









The basics of evolution




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Another simple guide to Natural Selection, just one of the factors influencing Evolution.




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A short video showing you some of the best evidence for evolution.




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Exam Packs and Activities

genomes_and_genetic_crosses_questions.rtf
File Size: 501 kb
File Type: rtf
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Markschemes

genomes_and_genetic_crosses_answers.rtf
File Size: 139 kb
File Type: rtf
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Revision Notes

natural_and_artificial_selection_revision_notes.pdf
File Size: 402 kb
File Type: pdf
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population_genetics_and_genetic_variation_revision_notes.pdf
File Size: 620 kb
File Type: pdf
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the_chi_squared_test_revision_notes.pdf
File Size: 678 kb
File Type: pdf
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genetics_revision_notes.pdf
File Size: 647 kb
File Type: pdf
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