Each of these things — along with every other organism on Earth — contains the molecular instructions for life, called deoxyribonucleic acid or DNA. Encoded within this DNA are the directions ...

Just as the yin-yang symbol is embedded in Korea’s national flag, these base pairs define the very structure of DNA. When the encoded information needs to be expressed, the double-helix unwinds ...

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 ...