Take a moment to reflect, using the questions below, and write yourself a letter to read later in the year. Do not overthink your answers. Set a timer to answer these questions and walk away from ...

The genetic code is a set of rules defining how the four-letter code of DNA is translated into the 20-letter code of amino acids, which are the building blocks of proteins. The genetic code is a ...

Atoms are the building blocks of everything. Atoms can form strong bonds with each other, making molecules. Symbols and formulae Letters from the alphabet are used to represent chemical elements.