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Ensure that your answer is precise, without too much waffle - this can confuse examiners and you'll lose easy marks! Take it step by step:First, the neurotransmitter, acety...
Although a lot of the time this can seem like a daunting question as there's a lot of specific terminology to use and a variety of reactions/interactions occurring, by splitting it up into short, simple s...
The mutation changes the order of bases so there is a different triplet code present. This results in a different amino acid being coded for in the polypeptide chain. Thi...
Helicase (an enzyme) breaks the hydrogen bonds between the DNA resulting in two strands. Only one strand acts as a template. RNA nucleotides attracted to exposed bases according to base pairing rules (A-U...
DNA replication takes place by semi-conservative replication (i.e. only half of the strand in each DNA molecule are from the original DNA molecule). First, the enzyme DNA helices is required to break the ...
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