The dot and cross diagram shows that a water molecule is made up of one oxygen ... so a triple bond forms between them. The structure of nitrogen is N≡N, showing that it has three shared pairs ...

The structure of a small molecule can also be shown as a three-dimensional ball and stick model. These models show how the atoms and bonds are arranged in space. The diagram shows a ball and stick ...

What have we learned about RNA structure and function so far? Although RNA is a single-stranded molecule, researchers soon discovered that it can form double-stranded structures, which are ...

But James Watson and Francis Crick's claim was a valid one, for they had in fact discovered the structure of DNA, the chemical that encodes instructions for building and replicating almost all ...

Each of these things — along with every other organism on Earth — contains the molecular instructions ... Beyond the ladder-like structure described above, another key characteristic of ...