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 ...

Modern life makes us tired, right? But research from societies in Africa and South America suggests people in the ancient ...

blood a pump (the heart) to push the blood around the body a system of tubes to contain the blood (arteries, veins and capillaries) The blood is the transport medium – it carries substances to ...

That’s it, former, current and future year 11s… the mock season has begun! Having just sat my first two GCSE mock exams, I can finally appreciate why teachers begin to express unusual ...