Flor Mous
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In unit 4, we talked about DNA fingerprinting, PCR and gel electrophoresis! Does anyone know which one we do first, which second and which last? Because the edexcel book doesnt specify clearly!
And its complicated to understand...
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haya.nasser
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PCR is done if the dna sample is not big enough , so if they ask you a question and they tell the sample is small but needs to be analysed so you do PCR first to amplify the sample, then comes DNA gel electrophoresis ( dna sampling is gel electrophoresis ) after this you can also do something called Southern Blotting for more detailed analysis
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Flor Mous
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(Original post by haya.nasser)
PCR is done if the dna sample is not big enough , so if they ask you a question and they tell the sample is small but needs to be analysed so you do PCR first to amplify the sample, then comes DNA gel electrophoresis ( dna sampling is gel electrophoresis ) after this you can also do something called Southern Blotting for more detailed analysis
Thank you so so much!!!!
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