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DNA is a polymer made up from monomer units. The monomers that make up a DNA molecule are called nucleotides. Nuceleotides are made up of a nucelic acid (adenine/guanine/thymine/cytosol); a five carbon...
Enzymes only have one active site which is only complementary to one specific substrate.
Conveniently, there are roughly 6 main stages in the process of eutrophication, so if you can memorise each one, step by step, you are sure to scoring full marks!
1) Algae blooms block li...
Below is a list (by no means exhaustive!) of topics you are sure to encounter in A-level biology and are frequently big features in exam papers.
If you are a GCSE student soon to be start...
Failing to distinguish between these two important command words can result in a lot of lost marks! ‘Describe’ involves writing a literal description of the data that is in front of you, may it be a gr...
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