DNA methylation is the covalent addition of methyl groups to DNA bases, typically the cytosine of CpG dinucleotides. It is catalyzed by methyltransferase enzymes using a S-adenosyl methionine ...

Suitable for: PSHE, Modern Studies (careers) and History at KS1 / KS2 in England, Wales and Northern Ireland and 1st and 2nd Level in Scotland.

JULIA: I’m at a Roman bathhouse in Bath in the south west of England. It was built by the Romans nearly two thousand years ago. These stacks of tiles are part of a very clever Roman invention ...

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