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Summary AQA Triple Biology: Variation and Evolution

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This is a revision powerpoint I used to revise for my GCSE exams. Filled with content from the specification, exam tips, questions, quizzes, animations, useful links and resources and everything in between in order for you to pass your exams!

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Institution
GCSE
Module
Biology










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Summarized whole book?
No
Which chapters are summarized?
Chapter 14
Uploaded on
December 9, 2022
Number of pages
22
Written in
2022/2023
Type
Summary

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Variation
and
evolutio
Biology chapter 14

,A bit on
• Not all parts of DNA code for proteins.
• Non-coding parts of DNA can switch gene


genes
and off
• variations in these areas of DNA may affe
how genes are expressed.

, 14.1
• Nature: Genetic variations caused by a
mutation


Variation
• Nurture: Environmental variation


• We can use identical twins to research
evidence of nature and nurture by putting
them in different environments
• However these studies have ethical conce
• It is easier to do it on plants
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