You can find all my A Level Biology videos fully indexed at freesciencelessons.co.uk/a-level-revision-videos/a-level-biology/
In this video, I take you through the structure of DNA. We explore what is meant by complementary base pairing and why the DNA polynucleotides are antiparallel. I then show you how to calculate the proportions of the different nucleotides in DNA. Finally, we look at the structure of RNA and the key differences between RNA and DNA.
This video is aimed at the UK A Level Biology specifications. Students studying International A Level Biology will need to check their specification.
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