Sinopsi

Take any living cell, whether it is a single-cell organism or a small part of a greater creature, and the cell knows what it is supposed to do. Scientists in the 19th and 20th centuries explored the boundaries of cellular biology by first noting that a single sponge cell will re-organize and grow into complete sponge tissue. It became apparent there was some mechanism instructing the cell to act in certain ways; nevertheless, it was not obvious what caused this behavior. The first break-through came from Friedrich Miescher in 1868. By using an enzyme called pepsin, he dissolved stomach cells and discovered Deoxyribonucleic acid (DNA) ...

 

THE CHEMESTRY OF LIFE