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DNA is made up of two nucleic acid strands joined by hydrogen bonding. Nucleic acids are polymers made up of many nucleotide monomers linked together by phosphodiester bonds. This type of bond is a covale...

It can be difficult to decide when to use the subjunctive tense, however there are certain conditions and phrases which trigger the subjunctive, and when you can recognise these, the subjunctive becomes m...

Historiographical orthodoxy has long considered Chartism to have been a failure. However, revisionist historians have emphasised how many proposals of the 'People's Charter' (published in 1838) were succe...

The first step is to identify which components of the ‘SUVAT equations of motion’ the question gives us. Here we have the initial (u) and final (v) speeds, the distance (s) and ...

In beta-minus decay, a neutron decays into a proton plus an electron. For alpha decay, the mass number decreases by 4 and the atomic number decreases by 2. For beta-minus decay, the mass number remains th...